10 Best Fillet Knife For Saltwater Fish: Kitchen Knife For Filleting The Saltwater Fish

fillet knife

It’s frustrating! It’s honestly frustrating when your knives give up before you do when filleting fish. Well, these knives can be tricky to work with. But, a high-quality fillet knife can make life way easier. Nowadays, there are a vast amount of options in the market with crazy features.

But, you’ll have to know that not all of them serve your purpose in the right way. That said, how can you select the best fillet knife for saltwater fish?

Don’t worry, we’ve got your back. After weeks of research, we’re confident enough to handpick the 10 best saltwater fillet knives for you. If that’s not enough then we’ve even compiled a buying guide in the end.

Before moving on do you know the secrets world-renowned chefs do while filleting fish?

Editor’s Recommendations: Top 5 Saltwater Fillet Knife From the List.

10 Best Fillet Knife For Saltwater Fish

1. Bubba 9 Inch Flex Fillet Knife

Bubba 9 Inch Flex Fillet Knife with Non-Slip Grip Handle, Full Tang Stainless Steel Titanium Bonded Blade, Lanyard Hole and Synthetic Sheath for Fishing

Durability, Reliability, and added convenience- you name it, bubba 9-inch flex fillet knife has it all. This is by far the best saltwater fillet knife. But, what is the exact feature that makes it stand out from the others? Well, the main selling point of this product is the handle and the extra safety features.

Speaking of the handle, the non-slip handle of the knife ensures that it provides added security all the time. So, you won’t face the risk of any minor or major accidents happening anytime soon. Besides, the grip of the handle makes sure that you have full control over the knife at all times. Here, the handles have the trigger grip feature in the handles. The trigger grip helps in providing extra security.

Now, let’s focus on the safety features of this knife. With safety guards, the knife protects the hands from the spine and blades of the fish. Moreover, the guards ensure that the hand never slips off the handle by any means.

Lastly, the thin stainless steel blades provide effortless cutting and maneuvering of the knife. So, you won’t have problems with cutting large fish like tuna. Yes, it is the tuna filleting knife. The best part is that the thin blades make sure you aren’t losing any meat in the process.


  • Projects effortless cutting and maneuvering.
  • The blades are durable and long-lasting.
  • Rust-resistant and sharp-tipped blades for easy usage.
  • Easy to carry.
  • Comes with safety guards for added protection.
  • The grip is comfortable and safe.


It’s a bit heavy.

2. Rapala Electric Fillet Knife

Rapala Deluxe Electric Fillet Knife AC/DC

Say hello to the first electric knife on the list- Rapala Electric Fillet Knife. If you’re looking for an electric fillet knife then you won’t get a better deal. But, what’s so special about this one? Well, let’s take a look-

For starters, the knife has a relaxed and comfortable grip. Here, the easy-grip promotes 2 added benefits. The first benefit of the grip is that you’ll be able to work with the knife for a long time without any discomfort.

The other benefit will be that the grip will ensure you have proper control over the knife at all times. Hence, your work will be accurate and easier at the same time.

Other than that, the quiet motor ensures that you won’t wake anyone up if they’re sleeping at work. Besides, the motor doesn’t die out easily and you’ll love the longevity factor here.

At times, the corded functionality of a tool gives rise to many problems. The most visible problem out of them is that you can get tangled in the cords. Also, the cords aren’t long enough that limit the movements. So, you won’t have the complete freedom of using the tools whatsoever.

But, that won’t be the case as this tool has a long 18 ft. cord in it. So, you’ll be able to move freely without facing any problems.

Lastly, the advanced airflow of the tool ensures that it’ll be able to deliver fast and effortless cutting almost all the time. So, you won’t have any problems with cutting smaller and larger fish.


  • Doesn’t make noise when functioning.
  • Has a larger power cord.
  • Comes with a comfortable grip.
  • Can go on for hours due to the powerful motor.
  • Provides accurate and effortless cutting.


The blades aren’t strong enough.

3. KastKing Fillet Prep Knives

KastKing Fillet Knife, Boning and Food Prep Knife, Razor Sharp 8Cr14 Stainless Steel Blade, 9 inch Strong Fishing Knife

Fillet knives need to be durable and sharp at the same time. Well, you’ll get both of these two features at once with our 3rd product. The KastKing Fillet Prep knives are perfect for saltwater and freshwater fishes.

Here, the stainless steel blades ensure that you’ll get the best performance from them when you’re working. Also, the best part will be the presence of high chromium content in them.

Due to the added chromium, these blades won’t corrode easily. So, you won’t have problems with saltwater or anything. Besides, the ceramic finish in the blade makes the knife have the “best corrosion resistance” in the market.

Another benefit of chromium is that the edge of the knives is sharp and strong. As a result, you won’t have problems with cutting smaller or larger fish at the same time.

Apart from this, the handles of the knives are made of UV-resistant materials. So, it’ll perform well at different temperatures and you’ll get a comfortable grip every time. Also, the slip resistance in the handles makes it easier for you to clean the knife once you’re done.

Lastly, the lightweight sheath of the knife can be used as a storage option too. These molded cases never accumulate water and can drain it safely. Also, it maintains airflow all the time in order to keep the blades in great condition.


  • Can work on both saltwater and freshwater fishes.
  • Has a sharp edge.
  • Will never corrode.
  • Comes with comfortable handles.
  • The handles are UV-resistant and don’t slip easily.
  • Comes with a storage option.


The sheath doesn’t stay in place.

4. Bubba Tapered Flex Fillet Knife

Bubba 9 Inch Tapered Flex Fillet Knife with Non-Slip Grip Handle, Full Tang High Carbon Stainless Steel Titanium Coated Non-Stick Blade, Lanyard Hole and Synthetic Sheath for Fishing

Well, if you’ve been following the list then you’ll notice that is the 2nd Bubba product on our list. So, why have we placed it down below? It seems like there are slight differences between the two that make this one go down.

What are those differences? Plus, what are the key features? Let’s break the product down in-depth to offer a clear idea-

Similar to the first product on the list, this one has an outstanding grip. Here, the knife has a trigger grip that provides security and great control. So, you won’t have to worry about minor slips here and there.

Also, the comfortable grip allows you to work with this knife for a long time without any discomfort or fatigue. Hence, you’ll be able to work for long hours.

Just as before, you’ll get safety guards in this one as well. However, this does lack some safety features unlike the first product on the list. So, you won’t get top protection from this tool. That said, it’ll still protect your fingers from the fish’s spine.

Other than that, you’ll almost get the same amount of durability and convenience from this one as well. The high carbon steel blades ensure effortless cutting and removal of meat from the fish.

In the end, the visible difference between these two products is the dimension. This particular product is a bit smaller than the first product on the list. Hence, you’ll face a bit of a problem when dealing with larger fishes.

But, these aren’t deal-breakers of any sort. Eventually, you’ll be able to fillet larger fishes with this one. It’s just that larger size adds in a slight advantage at the end of the day.


  • Doesn’t break or damage easily.
  • Easy to hold and control.
  • Can be carried without the use of the hands.
  • Protects the fingers.
  • The handles provide great control over the knife.


Can be a bit stiff at times.

5. Huntsman Outdoors Fillet Knife

Huntsman Outdoors 6 inch Fish Fillet Knife with Sheath - Non-Slip Handle, Stainless Steel Blade for Filleting, Food Prep, Skinning and Boning Knife

The 5th product in our list has the name Outdoor in its name. Rightly so, the Huntsman Outdoors Knife is perfect for Outdoors. Here, stainless steel provides optimum corrosion resistance. Hence, it won’t matter if you’re working indoors or outdoors, your purpose will be served.

Another great thing about the stainless steel blades is that they’ll be sharp out of the box. So, you won’t have problems with the cutting of the fish. But, if the blades aren’t sharp enough then you’ll be able to sharpen the blades easily.

Apart from that, the blades are made in such a way that they retain the sharp edge all the time. Hence, you won’t even require sharpening them in any way. But, if you want to sharpen then the option is there as well.

Now, let’s focus on the usability of the knives. With easy flex blades, the knives are perfect for boning and filleting fish. Here, you won’t even have problems reaching the tighter corners due to the flex of the knife.

The non-slip grip ensures that cleaning and working with this knife is easy and safe all the time. Moreover, the rubber material in the handles makes the experience extremely comfortable. So, you’ll be able to hold the knives for a long time without any problem.

To make things even convenient, the knives come with a lockable sheath that helps in packing and carrying the product.


  • Can be carried easily.
  • Provides a comfortable experience.
  • The blades don’t need to be sharpened.
  • Has an easy cleaning process.
  • Easy to work with.


The cover comes off if not placed correctly.

6. Outdoor Edge 5-Piece Professional Fillet Knife

Outdoor Edge ReelFlex-Pak, 5-Piece Professional Grade Fishing Fillet Knife Combo Set with Three Knives, Sharpener and a Hard Side Carry Case

Say hello to another professional graded knife on our list- Outdoor Edge 5-Piece. The USP of this product is the whole package that includes three sets of knives and a carbide sharpener.

Now, let’s talk about the knife itself. With a stainless steel blade, the knife is one of the sharpest you’ll ever find. So, it doesn’t matter what type of fish you’re filleting, the knife will have you covered.

After the knife, the handle is the second most important thing. If you’re concerned about the handle then let me tell you something. The non-slip ergonomic handle will make sure you’re working with ease and comfort.

So, you can rely on this knife the next time you’ll have to work for hours. As you’ll get a sharpener with the set, let’s talk a bit about it. Here, the carbide sharpening bits ensure that you’ll be able to sharpen the knife in less time.

Lastly, let’s talk about the brand itself- Outdoor Edge. If you’ve been on the market for a while then you’ve definitely heard about it. The company has been famous for its high-quality products.

The best part is that you’ll get lifetime service from the brand. So, you won’t have to worry about any missing parts whatsoever.


  • Comes with a whole set.
  • Contains a sharpener in the box.
  • The handle is comfortable.
  • Easy to hold and maneuver.
  • Has a sharp edge.


The knives don’t remain sharp for long.

7. KastKing Fillet Knife Filleting Fish

KastKing Bait Knife and Fillet Knife, Boning and Food Prep Knives, 9 inch Fillet Knife

We’re past halfway through our list and now let’s introduce you to another KastKing product on our list. The brand KastKing has been reliable for its sharp and durable products in the market of fillet knives. People do favor this brand over many top manufacturers in the market.

And so, we’ve included two of the best products of this brand in this list. That said, why have we placed it below on the list? Well, you’ll miss out on a few key factors in this particular one. Let’s break some of them below-

Firstly, you’ll get a lot of similarities between this one and the 3rd product on our list. Starting off, this one also has excellent sharpness retention as the previous one. So, you won’t need constant sharpening.

Furthermore, it has a polymer grip. So, that means they won’t slip from the hand by any chance. But, that doesn’t end right there. The polymer grip adds comfort and safety at the same time. Hence, you’ll be able to work for hours without any discomfort.

Now, let’s focus on the differences. For starters, the visible appearance of this knife will definitely impress you. With a clean black finish, the knife looks great. Also, it has black german blades that promote a premium finish too.

So, the aesthetic factor in this knife is quite impressive. In fact, it’s one of the best-looking knives on the list.

Apart from this, you’ll get the usuals in here too. Like, safety features, corrosion-resistance. The best part is that you’ll get all this in a budget price range.


  • Affordable option.
  • Has a great design.
  • Comes with a comfortable and secure grip.
  • Can be controlled easily.
  • Comes with a protective cover.
  • It’s extremely sharp.


The handles can get cold at times.

8. TUO 7-inch Fillet Knife

TUO Boning Knife - 7 inch Fillet Knife Flexible Kitchen Knives - German HC Steel Blade for Poultry and Fillet Fish - Full Tang Pakkawood Handle - BLACK HAWK SERIES with Gift Box

Who doesn’t love a good-looking knife? If you’re in it for the looks then this one’s for you, my friend. The satin finish of the blades makes this knife look great to the eye.

Also, the black handles and silver rivets portray the great appearance of the whole knife. So, you’ll fall in love at first glance.

Now, let’s focus on the more important factors. Starting off, the sharp edge provides the best experience when filleting. Also, the high carbon steel construction of the blades allows you to flex them a bit.

So, you’ll be able to reach the tight corners with this one as well. Besides, the steel blades ensure added durability and resilience all the time.

The handles make it even better when using this knife. Here, the angle makes it easier to hold and use the knife. Moreover, the handles are made of soft materials that make them comfortable. So, you’ll be able to ensure effortless and safe cooking for a long time.


  • Easy to carry.
  • Comes with a comfortable handle.
  • Ensures safety all the time.
  • Has a great appearance.
  • Can flex for quite a bit.


It’s a bit heavy.

9. Rapala Fish n Fillet Superflex Knife

Rapala Fish n Fillet Superflex Knife, 6' Blade Length , Brown

Let’s welcome the first brown-colored knife on our list. The design and overall appearance of this knife give off an old classic vibe all the time. If you’re wondering what’s so special about this one then we have just the answer.

First things first, let’s talk a bit about that design and color. With that rich brown color, make sure to get questions about where you got this knife from.

When you’re done answering this question, many will ask about where you learned filleting. Why is that? Well, due to the sharp blades, you’ll be able to finish the work in no time.

Furthermore, the thin blades of this knife will take your filleting experience to a whole new level. Here, the added flexibility and control make everything easy and simple.

Apart from this, the blades have an added coating on them. This coating makes sure that the fillets don’t stick to the blades at any time. So, you can clean the knife without much effort.


  • Comes with sharp and durable blades.
  • The cleaning process is easier.
  • The fillets don’t stick to the blades.
  • The blades have added flexibility.
  • Easy to control.
  • Has a great design.


The bolster can get dirty due to dirt accumulation.

10. PLUSINNO Fishing Fillet Knife

PLUSINNO Fishing Fillet Knife, Professional Bait Knives for Filleting Fish and Boning Meat, Razor Sharp 5Cr13 Stainless-Steel Blade, Comfortable Non-Slip Grip, ABS Protective Sheath (6' Fillet Knife)

If you’ve made it this far then congratulations! You’ve just finished 10 different fillet knives. Out of all the ones we’ve reviewed, this one is different. How is that? Well, let’s break its features down to give an idea-

Unlike the other products on the list, this one has a lightweight sheath. Here, the lightweight sheath makes sure that the blades are protected all the time. So, the blades won’t lose their sharpness quite easily.

Other than that, it has the same features as the other ones. With a sharp steel blade, you’ll be able to fillet any fish if you want to. It doesn’t matter if it’s saltwater or a freshwater fish, this knife will be able to get the work done.

On the other hand, the rubber handles ensure a secure grip at all times. So, you won’t have the chance of messing up the work in any way. The best part about the rubber handles is that it won’t provide any discomfort whatsoever.

In the end, this knife is perfect if you want to improve your filleting skills. In fact, even the fishermen recommend this option.


  • Easy to control and balance.
  • The rubber handles provide a secure grip.
  • Won’t provide any fatigue to the hands.
  • Improves filleting skills.
  • Makes filleting easy and simple due to the sharp blades.


The edge retention isn’t impressive.

How to Choose the Best Fillet Knife For Saltwater Fish?

best fillet knife for saltwater fish

From our review section, you already know a lot. In fact, you can even shortlist your favorite product easily from the provided information. But, the provided information can be confusing if you don’t know what factors to focus on.

At times, processing an ocean of information can be intimidating. As if that’s not enough, it can create unnecessary confusion too.

Hence, we’ve gone the extra mile for you and created this buying guide. Here, you’ll find the major buying factors when buying the best fillet knife. If you note these factors down then it’ll make your purchase decision even easier.

So, take a pen and paper as we’re about to take you through a wild ride-

Size Factor

Size matters. Hence, when choosing the best fillet knife, you’ll have to ensure that you’ve selected the right-sized blades. But, what’s the right size?

Well, the blades of the knives average from 4 to 9 inches. Here, the standard size is 4,6, and 9”. When dealing with saltwater fish, you’ll have to ensure that you have a variety of knives with you. This is mainly because larger fishes require longer blades, Whereas, smaller fishes don’t need longer blades at all. So, a bit of variety in blades makes it easier to work with saltwater fishes. But, if you want to be in the middle then go for the 7.5” blades. By selecting these blades, you’ll be able to enjoy both of the worlds.

Blade Material

Normally, all fillet knives are made of stainless steel. However, not all companies give equal care to making these blades. But, it’s essential that all the blades are strong and durable. Most importantly, these blades need to be corrosion-resistant as you’re dealing with saltwater. So, before buying the knives, make sure they’re made of stainless steel. Other than that, you can go to high-carbon steel as well. Just make sure that the blade materials are strong and durable. Moreover, make sure they’re corrosion-resistant as well.


Flexibility is an important factor to consider. Why is that? Well, the flexibility in the blades will make sure they won’t break easily. Furthermore, the flexibility will allow you to bend the blades without any problem.

When filleting big fishes, flexibility in the blades is crucial. This is because the blades will help at going on the tighter corner. Here, the flexible blades will make work easier and effortless. The other reason why you should choose flexible blades is that they’ll provide comfort in the hands. Normally, the shorter the blades, the more flexible they’ll be eventually. So, make sure you’re going for smaller blades if you’re trying to ensure flexibility in them.

Knife Handles

The handles of the knives should have the perfect grip and balance. Plus, no one wants to hold a knife for a long time if they’re in discomfort. Hence, comfort, balance, and grip are the three crucial factors when considering the handles. So, before buying the knives, make sure you’re going for the rubber or wooden option. Here, the wooden options will promote lightweight and balance. Whereas, the rubber ones will provide extreme comfort and grip.

In the end, it’s all about personal usage and preference. If you think you’d want balance and lightweight in the knives then go for the wooden ones. But, if you’re looking for grip and comfort, the rubber ones would do fine.

Weight Factor

Even though many overlook weight as a buying factor, it’s equally important as the rest. If you’re looking for faster effortless cuts then go for the lightweight knives.

Here, the lightweight feature will make sure you’re able to cut without breaking any sweat. Also, the lower the weight, the better you’ll be at keeping balance.

So, make sure you’re choosing knives that don’t weigh much and still serve the purpose well enough.

Safety Features

We’re down to the last point of the buying factors. By now, you’ve seen it all. But, safety is the most important out of all of them. This is because if you can’t ensure your safety then major injuries can take place. Well, accidents can happen anytime, right? So, you should be prepared accordingly.

That said, select the knives that have a finger guard or a safety bolster on them. Safety bolsters ensure that your fingers are well protected from the spine and bones of the fish. Whereas, the finger guards will always protect your fingers from the blades of the knives. Hence, your fingers and hands will be protected at all times.

Electric Vs Manual Fillet Knife

best fillet knife for saltwater fish

By now, you’ll get an idea about 10 different fillet knives from the review section. And trust me, all of them are the best in the business. But, many people wonder whether they should go for an electric or a manual option.

Well, both of these options are quite popular in the market. So, which one should you go for? Lucky for you, we’ve provided a head-head comparison between the two. So, let’s check it out below-

Electric Knives

First things first- the budget. Be ready to spend some cash on these knives. When compared to a manual knife, the electric ones do cost more. Besides, you’ll need to purchase some added tools and accessories with them.

So, the budget factor is definitely worth considering. When that’s out of the way, you’ll have to consider the moving parts and their longevity. If the batteries get damaged, you’ll have to replace them.

Other than that, there will be always problems regarding moving parts and their functionality. Here, you’ll have to keep in mind this knife won’t work when batteries aren’t charged.

Now, let’s take a look at the usability of these knives. When compared to the manual knives, the electric ones are a bit inflexible, to begin with. So, completing delicate works won’t be easy.

Manual Knives

Compared to electric knives, manual ones are cheaper and easier to use. Here, the knives make life way easier for its user. The bonus point is that it’s even easier to clean as well.

So, you won’t have problems with sudden malfunctions or inflexibility when using these knives.

Our Verdict

If you’re looking for our advice, we’d suggest you go for the manual ones. In the end, with the budget and easy functionality, you’ll be satisfied with them. Also, you won’t have problems with the moving parts and battery life whatsoever. Manual knives will never give up on you as there’s no battery here.

How To Sharpen A Fillet Knife?

Well, we’re almost at the end of this guide. But before going away, we’d like to share our thoughts on sharpening a fillet knife. Why is that?

It’s important to work with a sharp knife. Not only does that make work easier but it also ensures that you don’t have any chance of messing things up. Besides, a blunt knife can never ensure any smooth cuts whatsoever. Plus, it adds up the chances of messing things up at times. So, it’s better if you know the exact process of sharpening a fillet knife to be prepared at all times. But, sharpening a fillet knife itself won’t be a walk in the park if you don’t know where to begin. Fret not as we’ve explained below. So, let’s begin right away-


You’ll need some tools for the job. But, both of them are available almost anywhere and quite affordable. So, let’s take a look at them.

Now, let’s start with the 2 methods that we’ve prepared for you-

Method 1: Using A Knife Sharpener

Most sharpeners will have 2 phases. The first phase will be to sharpen the blades and the second one would be to hone the blades. So, let’s begin with the first phase. Here, you’ll have to pull out the edge of the knife. Then, stroke the knife’s edge to the thin slot. Usually, the thin slot is located on the sharpener’s top. After some passes, you’ll get your desired sharpness.

However, if you still don’t reach your desired sharpness then repeat the process again. By doing this, you’ll be able to ensure that you’ve sharpened your fillet knife. After this phase, you’ll have to continue with the second one. This phase is known as the honing phase. What does this phase do?

Well, it’ll bring back the sharpness in the knife’s edge. Normally, it’s better to hone the knives all the time after extensive usage. So, when you’ve honed your knife’s edge completely, it won’t have any issues completing the work.

Method 2: Using A Sharpening Stone

Sharpening stones are quite famous these days. In fact, you can sharpen almost any tool using these stones. The best part is that the process of sharpening is easy and straightforward. So, anyone can perform it if they know the correct technique.

But, it’s essential to know about the right technique and angle. If you ensure the right angle and technique, the work will be completed in no time. That said, how can you find the right angle? Well, you can take the help of a coin to find it.

Firstly, use the coin to position the knife at a right angle. Now, position the fingers on the top of the knife. After this, slide the edge of the knife safely over the stone. This is the correct angle for sharpening the knife with the stone.

After you’ve reached the right angle, it’s time to know the right technique. The good news here is that the technique is pretty straightforward. Here, you’ll just have to stroke the knife in the forward direction. Eventually, that’ll do the trick.

Now that you’re done managing the right angle and technique, let’s get back to work.

So, start off by sliding the edge of the knife over the stone. Here, the manner should exactly be the same as slicing butter. But, remember to position the knife’s back end above the stone. By doing this, you’ll be able to slide the edge easily. Sliding the knife forward will create options for effortless sharpening.

Lastly, repeat the process on the other side of the edge. After you’re done, you’ll have a sharp knife, to work with.


What Size Fish Fillet Knife is Best?

Even though you can go for a larger knife, getting a 6-inch fillet knife would be the best option.

Do You Need a Fillet Knife to Fillet a Fish?

Yes, you can fillet a fish using a normal kitchen knife. However, there’s a problem here. Regular knives aren’t designed to fillet a fish perfectly. As a result, you can cause irregular cuts here and there. Also, getting the skin off the fish would be a hard task with a normal knife. Hence, it’s better if you stick to a fillet knife when filleting a fish. This is because it’ll make your work a whole lot easier. Plus, you won’t run the risk of messing up your work by any chance.

Is a Boning Knife the Same as a Fillet Knife?

No, boning knives and fillet knives aren’t the same things. Even though you can use a boning knife to remove the bones, it won’t serve the same purpose. Here, fillet knives help to remove the skin and bones. Whereas, you’ll be able to remove the bones only by using a boning knife. So, they aren’t the same.

How Do You Fillet a Fish With an Electric knife?

Well, the process of filleting a fish with an electric knife is almost the same as other tools. First, wash the fish with water. Then, make the cut using the electric knife. Now, make sure you’re going up towards the front. Once you’re done, repeat the same process and go towards the tail. Keep the blades parallel so that you’re not putting any holes in the fish. After you finish the steps, you’ll have to repeat again on the other side. In the end, remove the ribs. After following all these steps, you’ll be able to fillet the fish using an electric knife.

Should a Boning Knife be Flexible?

No, a boning knife should never be flexible. This is because a flexible knife can cause injuries at any time. Hence, it’ll be better if the knife is stiff at all times.

Final Words

Folks, that’s been it from our side. Hopefully, all of the above information has helped you find the best fillet knife for saltwater fish. We’d like to conclude the article by saying that all of the above products are the best in the business. You’ll never be disappointed by any of them. That said, the buying guide is there to help you out with your desired product. If you’re still confused with anything then do let us know in the section below.

Good Luck!

Read More: Best Stainless Steel Knife Set.

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