The 11 Best Diver'S Knives (2023 reviews)

The nrs diver's knife is capable of outshining several other knife featured in this list in overall features. The compact design of the NRS Co-Pilot Knife is a fine fit on your PFD lash tab. It has a comfortable rubberized grip that wraps around the contoured handle, giving you maximum control of the blade, while the sheath clip attaches firmly to a pfd lash tab. It fits inside the pocket easily.

It has a built in bottle opener and an oxygen tank valve wrench. The unique sheath firmly locks the knife in place and only lets it go when you squeeze both sides of the release. It comes with great features like super sharp smooth and serrated cutting edges, and it is an excellent knife for freshwater boating and rescue.

Why We Like This:

Very accessible and easy on and off for emergencies
Good brand reputation

Best For salt water: Promate Diver'S Knife

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The promate diver's knife should be able to handle its purpose and duties with ease. It is a perfect little knife for scuba and snorkeling. Its small size and big bite, along with the protective plastic sheath make it perfect for diving, as well as camping. It is solid, but it gets a little slick when wet and doesn't have much of a hilt. It is a full tang so should stand up well.

The quick release sheath works well and it's sharp enough to do the job of quickly cutting away rope. It is a perfect design for this purpose and it cleans fish rather effortlessly with the serrated side. It is easy to reach place as a back up knife, and in case of emergencies. It is great as a tool and is easier to attach in a variety of places. It will get light surface rust after just your first use in salt water but it will clean off easy if you take care of it after every trip to salt water.

Why We Like This:

Strapped to your thigh or ankle
Lot of satisfied buyers

Best With Leg strap: SZCO supplies Diver'S Knife

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The szco supplies diver's knife is capable of outshining several other knife featured in this list in overall features for the price point. This knife actually stays on your leg when you swim. It is designed by szco supplies as a fundamental tool and necessity for those who spend their time underwater. It comes with a silver finish, this multi-purpose blade is made from premium quality 3cr13 stainless steel, which stands up to the toughest conditions. It is used mostly to bleed fish, but also to trim a braided line.

The saw edge is wicked sharp and good for scales too. It also has a hole at the bottom for draining water out. It is made of high strength and plastic, so these straps ensure slip resistance even during activities. The Sheath is very bulky and with the knife in, pretty heavy. This feature makes the knife easily reachable, creating confidence throughout any adventure, while keeping you safe.

Why We Like This:

Great for to have when diving
Snuggy sheath but bulky and squared,overall good
New and hot release

Best For rubberized coating: Bladesusa Diver'S Knife

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We would, of course, be remiss if we didn't mention bladesusa diver's knife for regular usage. It looks to be a solid and quality knife. It fits snugly in its sheath. It is stainless steel so it will rust at some point if you dont clean it well and conserve it with vaseline or with some fat, other than that it is a cool affordable knife.

This knife comes sharp and the case locks well. It will rust if you dont clean it well and conserve it with vaseline or with some fat, other than that it is a cool affordable knife. The tangs have holes to lighten up the overall length and provide attachment points as needed.

Why We Like This:

Very nicely made and sits tight not loose
Nice and sharp but not too sharp
New and hot release

Best For BCD: Gear Aid Diver'S Knife

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We would, of course, be remiss if we didn't mention gear aid diver's knife for regular usage. It's an excellent knife with an attachment system that is incredibly versatile. It offers many options for attaching to a variety of locations. The case is nice and you have a couple of options to use with your bcd, both a clip that you can remove from the case and also strap hooks. As they are, they're fairly sharp and render the blunt tip a bit less safe given the sharp edges. It has a very firm retention.

The knife is properly inserted and then locks it in place. It's a must-have for any water enthusiast. It's a great safety feature. It is a good gift for someone that enjoys time on the water.

Why We Like This:

Stays secure, integrates into bcds with grommets, no rust after dives
Good brand reputation

Best For belt: Wartech Diver'S Knife

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The wartech diver's knife should be able to handle its purpose and duties with ease. The sturdy knife is the perfect size for a boot or belt. It is a beautiful working knife with solid full tang. It comes with a stainless steel serrated blade. Both the strap slots and sheath are hard and durable, and the blade is presharpened to a keen edge. It is very sharp and holds the edge well.

The knife itself is solid, good weight and comes decently sharp. It will get a bit rusted with the material and none coated, but clean it up with metal wire ball it’s easy.

Why We Like This:

Real quality knife and the leg strap is amazing as well
Very well made stainless steel diving survival knife and durable
Good knife to carry around daily
Line cutter and leg strap sheath

Best line cutter: Aqualung Diver'S Knife

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Next on the list, we've got yet another knife that manages to win our hearts. It's the aqualung diver's knife and it's widely considered as knife that has the most suitable features. This compact knife can be mounted almost anywhere, including the wrist strap of your aqua lung dive computer. It does exactly what you need from a dive knife. It is definitely a convenient line cutter for dealing with unexpected lines while diving in the lakes or central texas. It allows the diver to securely lock the knife in its sheath while offering a quick and easy release with a simple squeeze of the handle. It comes with an exceptionally sharp edge.

The sheath has a nice locking mechanism that makes a distinct click sound. It is used for a flat head screw. It comes with variable mounting options including a flat head screw.

Why We Like This:

Handy, secure, and dosen't look like another hanging ornament on the christmas tree
Small, compact, and you don't look like a douche
Blunt tip for wreck diving and sheepsfoot for debris removal
Easy to pop out, even with gloves

Best For Spearfishing: Salvimar Diver'S Knife

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We would, of course, be remiss if we didn't mention salvimar diver's knife for daily purpose. It is designed for correct filleting of fish.

Why We Like This:

Double fastening slit on the scabbard to facilitate positioning on the calf
Serrated profile to scale the fish
Good investment for long term

Best looking Knife: Aqua Lung Diver'S Knife

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The aqua lung diver's knife has killer features for the price point. It features a sharp tactical tool and the skeleton holes in the handle are hex wrenches for emergency situations. The butt of the handle comes to a point for hammering, braking and crushing. It is double wrapped in 5mm paracord.

It is made of 4mm thick 420 stainless steel with an edp coating. These are then coated in black edp, sharpened and laser etched. It is great for a bcd or wrist mounted knife. The blade is available in two styles.

Why We Like This:

Nice compact size and a variety of mounting options
One full side of the blunt blade is die cut with rounded serrations
Low profile and comfortable to wear during snorkeling, fishing, kayaking, and horseback riding

Best Quality spearo Knife: Riffe Diver'S Knife

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Best part: riffe diver's knife costs comparatively low and it is available to ship in 24 hours. The space for the line cutter is simply just a space, it's not sharpened at all. It's a very nicely balanced knife and both sides are very sharp.

Why We Like This:

Serration for cutting up to 500 lb cable
Good investment for long term

Best For buck: Scuba choice Diver'S Knife

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Scuba Choice offers a variety of knife for personal choice and yet maintaining quality in all the variants. The sheath and knife are versatile in where you can attach this to your gear. It is designed for heavy duty usage with a -5.5 inch blade. It does not hold an edge well and is 38% carbon.

Why We Like This:

One of the new comers and featured product
Good investment for long term

The 11 Best Diver'S Knives (2023 reviews)

Our Top Picks:

Best Overall: NRS Diver'S Knife

Best For salt water: Promate Diver'S Knife

Best With Leg strap: SZCO supplies Diver'S Knife

Best For rubberized coating: Bladesusa Diver'S Knife

Best For BCD: Gear Aid Diver'S Knife

Best For belt: Wartech Diver'S Knife

Best line cutter: Aqualung Diver'S Knife

Best For Spearfishing: Salvimar Diver'S Knife

Best looking Knife: Aqua Lung Diver'S Knife

Best Quality spearo Knife: Riffe Diver'S Knife

Best For buck: Scuba choice Diver'S Knife

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