Top 7 Best Fillet Knives For Trout Fishing: Which One Would You Choose?

* This post may contain affiliate links. Please see my disclosure here.*

It’s not that straightforward to separate unnecessary skin and bones from fish.

However, with the best fillet knife for trout, the process becomes very effortless.

So, what is the best fillet knife for trout fishing anyway?

With many knife models in the market, finding the best pick can be strenuous.

The reason being, there are numerous fillet knives with varying shapes, prices, features, and designs.

This article is here to make things easier for you.

After thorough research, we present what we believe are the seven best fillet knives for trout in the market.

Best Fillet Knives For Trout Fishing (Updated List)

* A Serious Contender *

DALSTRONG Fillet Knife - 6" - Shogun Series - Damascus -...
  • A Dalstrong culinary revolution combining outstanding and...
  • Unrivaled Performance: Ruthlessly sharp scalpel like edge is hand...
  • Dalstrong Power: Ultra sharp AUS-10V Japanese super steel cutting core...

Related fillet knife collections:

Buying Guide

Blade Material

Most fillet knives come with stainless steel, reinforced steel, and carbon steel blades.

However, high carbon steel and Titanium-coated steel tend to be pricier than typical stainless steel.

Regular stainless-steel blades are not just less costly but are easy to sharpen as well.

On the other hand, carbon steel is also easy to sharpen, more robust and retains the edge longer.

At the same time, some blades feature high-carbon stainless steel.

Steel with high carbon content is more substantial.

For that reason, knives with high-carbon stainless-steel blades are more expensive due to their excellent quality.

Handle Material

The handle is yet another factor to consider carefully.

The best choice for trout fishing should have a comfortable grip.

Moreover, the surface should also be slip-resistant.

With these two properties, you’ll achieve excellent control and flexibility as well.

You will come across fillet knives with plastic handles while others are boasting rubber and wooden handles.

All these handle materials are ideal. So, the choice is a matter of personal preference.

However, a rubber handle is excellent as it has odor repellant properties.

Blade size

What type of fish do you intend to prepare? That’s the question to answer as far as blade size is concerned.

A 6-inch plus blade is not necessary if you are dealing with small and light fish.

Similarly, you are going to need a longer blade if you are filleting big fish.

The reason being, big fish, tend to have more bones and meat alongside tough skin.

The best way to go around this is by using a fillet knife with a longer blade.

Product Reviews

KastKing (Best Choice)

KastKing Fillet Knife 7 inch, Professional Level Knives for...
  • Razor Sharp Stainless Blades – All new KastKing knives utilize...
  • The Right Knife For The Job - The 6”, 7” & 9” stainless curved...
  • Non-Slip Super Polymer Grip - We use the most comfortable and...

This one from KastKing is an ideal option for an average budget.

It features a razor-sharp 7-inch blade. What’s more, this knife is available in 6-inch and 9-inch options.

It then features stainless-steel with a striking black finish.

With this material, it can maintain its edge for a long time in both salt and freshwater use.

In other words, it is resistant to corrosion and rust.

Further, this comes with a super polymer handle.

It, therefore, assures enough grip for safe use and comfort.

As a bonus, it includes a knife sheath.

Besides protecting the blade, it also ensures your safety between jobs.

Our scores:

  • Sharpness: 9.5/10
  • Handling: 9/10
  • Ease of maintenance: 9/10


  • Available in 6, 7, and 9-inch options
  • Corrosion and rust-resistant
  • Durable stainless-steel material
  • Comfortable non-slip handle
  • Includes a protective knife sheath
  • Reasonable price


  • The handle is somewhat large.

Bubba 9-Inch (2nd Runner-up)

-21% Sale
Bubba 9 Inch Tapered Flex Fillet Knife with Non-Slip Grip...
  • DIMENSIONS: 15” overall length with 9” blade
  • EASE OF USE: Non-Slip Grip handle for outstanding grip security...
  • RELIABLE: Features safety guards for protection from the blade and...

This one from Bubba is nothing less than impressive.

It has a 15-inch overall length with 9 inches going to the blade.

With such a knife, it can be the best fillet knife for trout and other sizeable fish.

Another key feature is its non-slip grip handle.

Alongside a trigger grip, it guarantees excellent security and control.

Its thin blade then features high carbon stainless steel.

Even further, it has a Titanium-Nitride coat. These materials make it rust-resistant.

Its safety guards protect you from both the blade and sharp fish spines.

Lastly, it includes a sheath with a convenient belt loop for easy carrying around.

Our scores:

  • Sharpness: 9/10
  • Handling: 8.5/10
  • Ease of maintenance: 9/10


  • Ideal for sizeable fish
  • Durable high carbon stainless-steel material
  • Includes a protective sheath
  • Safety guards for extra protection
  • Non-slip grip handle


  • May arrive dull

KastKing Spartacus (Best for Durability)

KastKing Spartacus Fillet, Boning and Food Prep Knife, Razor...
  • 8Cr14 Stainless-Steel Blades – Each of the new KastKing Spartacus...
  • Cerakote Ceramic Finish – To deliver the very best corrosion...
  • Kraton G Polymer Handle – The highly UV resistant handles provide...

Coming third is the KastKing Spartacus.

It boasts an ultra-sharp 7-inch stainless-steel blade.

It’s also worth mentioning the high carbon and Chromium content of the blade.

As a result, this knife retains its edge sharpness and is resistant to corrosion.

To bolster its corrosion resistance even further, it integrates a Cerakote Ceramic Finish.

Other than excellent performance, this one is also very durable.

The handle then includes Kraton G Polymer material.

Other than optimal grip, the handle is also UV resistant and comfortable.

It also features a knife sheath that protects you from the blade while keeping it safe as well.

Our scores:

  • Sharpness: 8.5/10
  • Handling: 8.5/10
  • Ease of maintenance: 9.5/10


  • High carbon durable stainless-steel
  • Resistant to corrosion
  • Non-slip UV-resistant handle
  • Includes a knife sheath
  • Ideal for large fish
  • Stylish design


  • No reported cons

Calamus (Best for Comfort)

Calamus Fishing Fillet Knife And Bait Knives, German G4116...
  • G4116 German Stainless Blades – The razor sharp G4116 German...
  • Available in Four Different Lengths and Shapes – Calamus filleting...
  • Non-Slip Golf Style Handles – Each knife has a comfortable and...

Are you looking for a stylish knife?

If yes, this knife is the real deal.

It is available in a 7-inch and 9-inch option.

It features stainless-steel blades with a blue Teflon finish.

Thanks to its material, it maintains its edge and is corrosion resistant as well.

Moreover, it comes with a non-slip rubber handle.

Not only is the grip comfortable but also safe to use in both dry and wet conditions.

As an added advantage, this one includes a protective nylon sheath.

It, therefore, protects you from the blade while keeping everything secure.

Our scores:

  • Sharpness: 8.5/10
  • Handling: 9.5/10
  • Ease of maintenance: 8/10


  • Available in two options
  • Striking blue Teflon finish
  • Corrosion and rust-resistant
  • Non-slip golf-style rubber handle
  • Protective nylon sheath


  • Not very sharp for some people
  • It gets dull too fast.

PLUSINNO (Best for Precision)

PLUSINNO Fishing Fillet Knife, Professional Bait Knives for...
  • 🐟 【Professional Fish Fillet Knife Set】: Three models are...
  • 🐟 【5Cr13 Sharp Stainless-Steel Blades】:The fishing fillet...
  • 🐟 【Comfortable Non-Slip Grip】:The textured-rubber handle...

This fishing fillet knife for trout is available in three size options. These include 5, 6, and 7-inch blade lengths.

It delivers maximum flexibility to allow you to fillet fish with excellent precision.

Besides, the razor-sharp blade features stainless steel material.

As a bonus, it features a black coat finish that makes it very striking.

Its handle, on the other hand, features super polymer material.

As such, it achieves a comfortable non-slip grip.

You can, therefore, use it in both dry and wet conditions.

To conclude, this one comes with a vent and lightweight, protective ABS sheath.

With a unique lock design, it perfectly locks the handle in for safety.

Our scores:

  • Sharpness: 8.5/10
  • Handling: 9.5/10
  • Ease of maintenance: 8/10


  • Available in three sizes
  • Flexible stainless-steel blade
  • Non-slip comfortable grip handle
  • Lightweight and vent ABS sheath
  • Lock-in design for safety


  • The blade is somewhat weak.
  • Poor quality cover

Rapala (Best for Beginners)

Rapala Fish n Fillet Superflex Knife, 6" Blade Length ,...
  • Incredible extra thin blade allows the greatest flexibility and...
  • PTFE non-stick coating lets fillets effortlessly fall away.
  • Razor-sharp handground stainless steel blade features through tang...

The Rapala Superflex comes with a 6-inch stainless-steel blade.

Even so, it’s also available in two other lengths; 7.5 inches and 4 inches.

Its blade is extra flexible and thin.

As a result, it gives you control to make smooth and clean cuts.

It then features a non-stick coating that makes filleting fish easier.

Its handle comprises of hand-rubbed baked birch wood.

Through this, it assures comfort and excellent grip.

When not in use, you can keep it in its genuine leather sheath.

The sheath also includes a belt loop for attachment that makes it easy to carry it around.

Our scores:

  • Sharpness: 8/10
  • Handling: 8.5/10
  • Ease of maintenance: 8/10


  • Genuine leather sheath
  • Non-stick stainless-steel
  • Non-slip wooden handle
  • Corrosion and rust-resistant
  • Available in three size options


  • The handle may fall apart.
  • It tends to dull fast

Rhinoreto (Best for Speed)

-9% Sale
Rhinoreto Fish fillet knife. Flexible, stainless steel...
  • FLEXIBLE, CURVED BLADE. The non-stick coating of the fillet knife for...
  • NON-SLIP, SAFE, RUBBER HANDLE. The handle is large enough to fit all...
  • VENTED, LIGHTWEIGHT SHEATH. The ported design helps reduce weight and...

Finally, we have the one from Rhinoreto.

Unlike most models, it’s available in two blade size options; 6.5 inches and 8 inches.

The blade is flexible and features stainless-steel with a non-stick coat.

Consequently, meat slides off quickly, making the entire filleting process effortless and fast.

Also, the material makes it corrosion resistant hence ideal for both saltwater and freshwater fish.

It then includes a non-slip rubber handle.

Besides being safe, the handle is also large enough for all hand sizes.

There is also a lightweight vented sheath.

The cover assures protection while making it easy to travel with.

On top of that, this filleting knife comes with a sharpener.

It’s easy to use, allowing you always to keep your blade sharp.

Our scores:

  • Sharpness: 8/10
  • Handling: 9/10
  • Ease of maintenance: 8.5/10


  • Flexible stainless-steel blade
  • Two blade size options
  • Corrosion and rust-resistant
  • Non-slip rubber handle
  • Lightweight vented sheath
  • Easy-to-use sharpener


  • May arrive with a dull blade.

Frequently Asked Questions

What tools are best for sharpening a fillet knife?

You can use a worktop sharpener, a whetstone, sharpening steel, or an electric sharpener.

What is the best way to use it?

Always ensure the blade is sloping sideways to achieve a clean cut along the fish’s spine.

What is the essence of it?

It is perfect for setting aside bones and skin from fish meat.

Can you wash your knife in a dishwasher?

You can. However, it’s best to wash it by hand in hot soapy water for it to last long.

What blade size is the best for filleting?

If you plan to fillet small fish, opt for a short blade not exceeding 6 inches. On the contrary, filleting big fish is more manageable with longer blades ranging between 7 and 9 inches.

What materials make the best fillet knife for trout?

Go for a knife with at least a stainless-steel blade. As for the handle, consider any material with a non-slip surface.

How is a fillet knife different from a boning knife?

Most boning knives have straight blades. Fillet knives, on the other hand, have their edges curving slightly.

Then again, fillet knives tend to be more flexible and thinner than boning counterparts.


Trout is a favorite freshwater fishing game primarily because a lot of lakes are stocked with this particular fish.

It also has a very delicate flavor that is perfect for a whole lot of dishes – smokes the whole thing with butter or cheese, steams the tail with ginger and green onions, sautee chunks of it with tomato and shallots, or simply pan-fry a fillet then drizzle with lemon juice!

But the best thing about the trout is that it’s pretty easy to prep, especially filleting. Now, all you need is a proper knife…

Two pieces from KastKing have earned a spot on our list.

KastKing’s filleter made from G4116 German stainless steel is a huge favorite among anglers and fishmongers because of its blade’s amazing flexibility and its non-slip contoured handle.

The Spartacus fillet and boning knife is the second KastKing enumerated here. Made from the high carbon 8Cr14 steel, this has a slightly harder blade that stays sharper for a longer period. It also has a ceramic coating that prevents corrosion.

You could also try Bubba’s 9-inch fillet knife that has several features of KastKing’s products and more. Many prefer this because of its safety guards that keep your hands from slipping into the blade.

Further reading:

18 Best Trout Streams in the Western U.S. and Canada

Last Updated on September 22, 2021

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My name is Andy Wang, and I'm a retired chef. I used to work at the City Vineyard restaurant in NYC. I also had a culinary degree from the Institute of Culinary Education in New York. And this blog is where I share my love for knives and cooking with people like you.