45 Deep Sea Creatures That'll Scare You Away from the Ocean

Do you occasionally enjoy the peace and quiet of a nice day out on the waves? Love the occasional cute sea creature that pops up to say hello when you’re chilling at the beach? Well, then you may have come to the wrong place! Here we’ve collected a list of some of the most disturbing scary sea creatures that roam beneath the waves. We’ve scoured the depths of the deepest waters to find a list of creepy creatures and scary fish that prove that the deep sea and ocean depths are the most horrifying places on .
You may think twice about taking up Scuba-diving after getting a load of some of these deep sea fish, who range from to terrifying. While some of these guys (or maybe they’re gals, who can be sure?), such as the Dumbo octopus, could possibly be considered cute in the right light, others such as the goblin shark are just plain terrifying. Among this collection, you’ll find both deep sea dwellers that have been known to mankind for quite some time, as well as others that were only discovered as recently as the past decade and remain relatively mysterious. 
So if you’re ready to get a load of what lurks beneath the surface, take a look at some of the most deep sea creatures the oceans have to offer. We’ve got a wide range of creatures from the harmless to the lethal, all of which sport the wildly bizarre looks that can only be found way beneath the waves. Whether they’re bottom-dwellers or deep sea swimmers, many of these freaky fish have looks that only a mother fish could love.

The Super Scary Fanfin Seadevil
Though the creepy looking “Fanfin Seadevil” has a terrifying appearance, it’s also almost completely black, which makes it very hard to spot in the deep waters of the ocean. When mating, the males fuse themselves to the females and share the same bloodstreams! And you thought your ex was bad!
The Deadly Looking Dragonfish
These scary lookin’ dudes, called “Dragonfish,” actually start life closer to the surface, due to the fact that their eggs are buoyant. Eventually however, they become capable of producing their own light through a process known as bio-luminescence and descend much deeper into the shadowy depths of the ocean.
The Sinister Looking Lancet Fish
These evil-looking fish are called “Lancet Fish” and are cannibals, in that they’ve been known to eat their own kind. The nocturnal predator is rarely seen near the surface however, so little is known about it.
The Ghoulish Looking Goblin Shark
The “Goblin Shark” is the sole surviving member of a 125 million year-old family of sharks known as “Mitsukurinidae” and are sometimes referred to as “living fossils.” They are very rare and generally found at depths deeper than 330 feet.
The Spooky Looking Snaggletooth
The creepy looking “Snaggletooth” not only has incredibly sharp teeth, but a special glow in the dark “lure” on it’s chin that it wiggles to attract prey.
The Very Scary Viperfish
While the spooky looking “Viperfish” sticks to deeper waters during the day, a handful have been known to venture closer to the surface at night. Unfortunately however, they don’t survive very long in captivity so not a whole lot is known about them.
The Freaky Looking Frilled Shark
This creepy looking guy is called the “Frilled Shark” and lurks in the depths of the Atlantic and Pacific oceans. Though they’re very rarely seen, scientists think frilled sharks hunt by lunging at their prey like snakes and then swallowing it whole. Yikes!
The Frightening Fisherman Angler
Scientists discovered the Lasiognathus dinema in the depths below the Gulf of Mexico, and believe that it’s fishing pole-like, hooked lure is evidence of the fact that it’s learned to fish for it’s prey.
The Creepy Looking Longhorn Cowfish
This UFO-looking creature is actually known as the “Longhorn Cowfish.” Though it may look mesmerizing in a sci-fi sort of way, steer clear if you ever see one while Scuba diving. They release a super-lethal toxin when they get stressed out!
The Very Frightening Fangtooth
Though the “Fangtooth” may only grow to around six inches, it also the largest teeth (relative to body size) of any fish in the ocean. Its super scary appearance has also earned it the nickname, the “saber tooth.”
The Startling Looking Stargazer
Don’t be fooled by the pretty name; “Stargazers” are not only venomous, but also quite stealthy. Since their eyes and mouths are on top of their heads, they burrow down into the sand, wait for prey to swim overhead, and then leap up and strike!
The Petrifying Pacific Blackdragon
Though female “Blackdragons” are about two feet long and have scary, sharp teeth, the males don’t fare quite as well. They only grow up to about three inches long, have no teeth or stomach, and only live long enough to mate!
The Ghastly Looking Ghost Shark
When it comes to creepy names, the “Ghost Shark” may just take the cake. Though once popular in oceans throughout the world, today they stick mostly to deep waters and are rarely seen by humans.
The Big Bad Black Swallower
Though the “Black Swallower” may not be the biggest fish in the sea, his scrappiness and ability to consume is not to be underestimated. In fact, black swallowers have been known to consume prey 10 times their size!
The Spooky Looking Snakehead Fish
These predatory fish, known as “snakeheads,” are native to Africa and Asia, where they float around eating other fish, frogs, and in one case even a rat!
The Horrifying Looking Hatchetfish
The “Hatchetfish” is found in oceans around the world at depths ranging from 600 to 4,500 feet. They have special light-producing organs, similar to fireflies which allow them to glow in the dark.
The Eerie Gulper Eel
The pelican mouthed “Gulper Eel” can live at depths of up to 10,000 feet and has the advantage of a very large jaw, which allows it to eat fish even larger than itself!
The Sinister Looking Elephant Shark
The “Elephant Shark” puts its large, trunk-like snout to good use by using it to sift through sand for tasty edibles that could be buried beneath. These big-nosed boys can also see color, just like humans!
The Menacing Looking Monkfish
The terrifying looking “Monkfish” is all mouth, with a huge jawline full of sharp teeth which it’s always ready to sink into its unsuspecting prey. Not only can they change colors to blend in with their surroundings, monkfish also have small, seaweed looking appendages that give them an added measure of stealth when lurking along the ocean floor.
The Gruesome Looking Grenadier
The “Grenadier” is thought to be among the most highly-populated family of deep sea fish in the world and are estimated to make up approximately 15% of all deep sea creatures out there. Their tapered tails have also earned them the nick name “Rattails.”
The Giantically Giant Squid
The “Giant Squid” does not disappoint when it comes to living up to its name. One of the largest living organisms in the world, the females can grow up to 43 feet long and the males up to 33 feet. Not too shabby!
The Kind of Creepy Kiwa Crab
The “Kiwa Crab,” discovered in the South Pacific in 2005, is often nicknamed the “Yeti Crab,” due to the blonde setae covering its claws, which resemble fur.
The Weird Looking Squidworm
Scientists first discovered the “Squidworm” in 2007 at nearly two miles beneath the surface of the ocean. It has tentacle-like appendages on its head, which are longer than the rest of its body and are used to collect floating detritus that it uses for .
The Weird and Wily Seapig
The “Seapig” derives its name from its fellow pink bros on land and lives in some of the deepest parts of the ocean, often up to 3.7 miles below the surface. They not only move around by walking along the ocean floor, but are well-equipped to do so with between five and seven pairs of walking legs. These legs can be inflated and deflated to help the creature move about.
The Very Scary Looking Vampire Squid
Though it doesn’t actually suck blood, this scary looking creature is called a “Vampire Squid.” It shares similarities with both the octopus and the squid, but despite its intimidating appearance, doesn’t actually hunt living prey.
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    The -Raising Hagfish

    “Hagfish” are sometimes called “Slime Eels,” even though they aren’t actually eels at all. They do however live up to the slime part, producing up to a milk jug’s worth of hard-to-remove slime when threatened. They are sort of like the vultures of the ocean, as they often feed on dead or dying creatures, sometimes by burrowing into them and eating their way out. Ick.
    The Beasty Looking Batfish
    The “Batfish” is a bizarre little bottom-dweller that looks like he’s wearing lip stick. Though they aren’t great swimmers, batfish have little appendages that allow them to walk around on the ocean floor, where they often hide in the sand and lure prey into their mouths.
    The Ghoulish Giant Spider Crab
    Crab legs, anyone? This guy doesn’t think so. The ” Giant Spider Crab” can have a leg span up to 12 feet and weigh up to 42 pounds!
    The Extremely Rare Sofa Shark
    This little buddy was discovered in 2015 by scientists from Marine Scotland. They were able to capture a photo of the sofa shark through their Scottish Shark Tagging Program.
    The Super Creepy Coffinfish
    Well, let’s just say the poor “Coffinfish” sure hasn’t won any beauty contests lately. These spiny, flabby little guys are actually sea toads who live in the waters of the southeastern Pacific at depths of  164–984.3 feet.
    The Super Quick Striking Mantis Shrimp
    You might think twice before using the term “shrimp” as an insult after meeting the “Mantis Shrimp,” one of the most creatively violent creatures on earth. They have two non-assuming looking appendages in the front of their body, which can actually shoot out with the speed and force of a bullet fired from a 22 caliber rifle. The speed at which this little guy’s limbs can move causes the water around him to boil, creating an underwater shock wave which can kill creatures in its path, even if the super shrimp misses them when he strikes!
    The Bizarre Looking Barreleye
    The “Barreleye” has eyes on top of its head, which it can use to scan for upward floating prey while looking like it’s minding its own . It also sports an -like, transparent dome on its head and is commonly referred to as a “spook fish.”
    Even though it may be among the better looking creatures on the list, the “Blue-Ring Octopus” is also among the most dangerous. Not only does it have incredibly potent venom, there is no known antivenin if you fall victim.
    The Eerie Looking Giant Isopod
    These bottom dwelling guys are called ” Giant Isopods” and love to burrow into the mud and clay floors of oceans around Japan and China. Due to their incredibly slow metabolisms, they can go years without eating but also conserve their energy by never moving around very much.
    Though the “Megamouth Shark” has one of the most impressively huge sets of chompers we’ve ever come across, it’s also incredibly rare and wasn’t even discovered until 1976. Only about 60 have ever been sighted, as of 2015.
    The Strange Looking Snipe Eel
    These snaky looking guys are called “Snipe Eels” and have long, almost bird-like beaks. Their incredibly slender bodies can grow up to 60 inches long and they live mostly on small, shrimp-like crustaceans.
    The Bizarre Looking Blob Fish
    The “Blob Fish,” once declared the world’s ugliest living organism, tends to hang out at depths of around 2,000 to 3,900 feet. Its body is mostly a gelatinous mass of flesh that’s slightly less dense than water. This allows it to hover above the sea floor without using any energy, eating mostly  that happen to float into it’s path.
    The Menacing Mighty Claw Lobster
    “Ausubel’s Mighty Claw Lobster” lives up to its name with a claw that looks like a giant built-in chainsaw. A relatively new find, the first one ever collected was found in 2007 in the Philippine Sea, off the island of Luzon.
    The Big Bad Red Jellyfish
    “Big Red Jellyfish” were discovered in 2003 and are so rare that only 23 sightings have been reported. They can grow up to 30 inches in diameter and live between  2,000 and 4,900 feet below the surface.
    The Weird Looking Acorn Worm
    This weird little worm is called the “Acorn Worm” and though many of its species are much smaller, some have been known to grow up to eight feet in length. Despite its creepy appearance, the acorn worm mostly feeds off of detritus found in mud or sand on the ocean floor.
    The Harrowingly Hairy Frogfish
    This hairy looking little guy is aptly named the “Hairy Frogfish” and although only it’s about eight inches long, it can swallow prey as large as itself. It also has the ability to change color over time in order to blend in with the environment, making camouflage one of its specialties.
    The Surprisingly Lethal Lionfish
    Though they may be colorful, “Lionfish” are skilled hunters and not to be trifled with. These venomous little guys feed mostly on other fish, invertebrates, and mollusks, and swallow their prey in one swift motion.
    The Slightly Disturbing Dumbo Octopus
    The “Dumbo Octopus,” which kind of looks like a giant floating alien head, was named after the character because of its large ear-like fins.
    The Awfully Creepy Amphipod
    Though the “Amphipod” may be a creepy looking little guy, he’s generally known as a scavenger and doesn’t grow much larger than a foot long at the most. He and his pals look like of like see through sea ticks. Gross!
    The Frightening Looking Frogfish
    These short, stocky little guys are known as “Frogfish” and are masters of disguise. Not only do they have a coral-like appearance in general, they can also change colors in order to blend in with their surroundings. This not only protects them from predators but allows them to lie in wait for prey, which they then strike out at rapidly.
    The Weird Giant Tube Worm
    “Giant Tube Worms” are creatures that live in plant-looking tubes affixed to the bottom of the ocean floor. When all is safe, they project a red “plume” that gathers nutrients from the surrounding sea water.
    The Super Stealthy Leafy Seadragon
    A close relative of the seahorse, this little guy is known as the “Leafy Seadragon” and is one of the best disguised creatures on the planet. Often content to float around like seaweed, which it’s often mistaken for, the seadragon survives on  tiny crustaceans such as mysids, or sea lice.
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