200+ Beautiful & Scary Mermaid Last Names

When deciding on a mermaid name for yourself or if you are writing a fantasy story or book which includes mermaids, mermen or merfolk, you might end up pondering about the perfect mermaid last names.

Because it can be difficult to find mermaid surnames online, I came up with a list of both beautiful and dangerous-sounding mermaid last names for all kinds of characters and other uses. I hope it’s helpful and will spark your imagination.

Beautiful Mermaid Last Names

Here you find mermaid last names that have a beautiful sound or meaning to it. Some of them sound very magical and might be especially useful for fantasy stories.

  • Bluespark
  • Waterglow
  • Crystalice
  • Oceanglow
  • Highseas
  • Calmsea
  • Tasselweed
  • Kelpia (from the algae kelp)
  • Kelpforest
  • Marinecastle
  • Sea-born
  • Oceanlight
  • Brighttail
  • Sparkletail
  • Seasparkle (biolumnescent algae that shine brightly blue when crashing into coast)
  • Wonderflow
  • Bluewave
  • Whitecap / Whitehorse (white caps on waves)
  • Aqualy (from Aqua which means water)
  • Vatura (word for water in the Sinhalease language from Sri Lanka)
  • Nero (word for water in the Greek language)
  • Valtameri (word for ocean in Finnish)
  • Haf (word for ocean in Icelandic)
  • Okean (Uzbek word for ocean)
  • Flyde (word for flow in Danish)
  • Tidal wave
  • Moonlit
  • Sunsplash
  • Star
  • Splash water
  • Seashine
  • Light
  • Coastalsun
  • Oceanbloom
  • Lovescales
  • Passiontail
  • Dauphinami (dauphin + ami is french for dolphin friend)
  • Tritoness (Daughter of the Greek sea god Triton)
  • Nereide (a nereid is a sea nymph from Greek mythology)
  • Watercraft
  • Bluemagic
  • Tailcharm
  • Finspell
  • Glamourshell
  • Aquababy
  • Seasound
  • Oceansong
  • Melodia (from Melody)
  • Shellstar
  • Pearlscales
  • Enchanttail (enchanting + tail)
  • Oceanrain
  • Sweetwater
  • Floatstar
  • Blueheart
  • Warmwater
  • Pureocean
  • Waterlove
  • Cloudfall
  • Blueforce
  • Solarsea
  • Marmoris (Latin word for marble, figuratively: the shining surface of the ocean)
  • Mistyblue
  • Moonglade (The track made by moonlight on water)
  • Thálassa (Ancient Greek for ocean, a thalassophile is an ocean lover)
  • Beachfun
  • Coralflower
  • Pastelcoral
  • Reefbeauty
  • Mooncycle
  • Moonforce
  • Luna (roman goddess of the moon)
  • Lunartide
  • Florescence
  • Fluidlove
  • Icey
  • Bluelagoon
  • Narwhal
  • Porpoisely (Porpoise)
  • Sea anemone
  • Whitewater
  • Dreamtide
  • Nori (algae)
  • Wakame (algae)
  • Anemone
  • Cuddlefish (like Cuttlefish)
  • Pinkcoral
  • Neptuna
  • Amber cove
  • Bubblerose
  • Goldensea
  • Nobletail
  • Shimmerdrops
  • Lunardream
  • Goldfluke
  • Goldfins
  • Goldtail
  • Silverscales
  • Bubblespell
  • Diamondwave
  • Purplescales
  • of Atlantis (the mythical sunken/underwater city)

So, a mermaid called Ariel could be called Ariel Goldfluke etc.

There are also mermaid last names that are tied to real places on earth like certain oceans and seas:

  • of the Arctic Ocean
  • of the Atlantic Ocean
  • of the Indian Ocean
  • of the Pacific Ocean
  • of the Icarian Sea
  • of the Caspian Sea
  • of the Kara Sea
  • of the Euxine Sea
  • of the Alboran Sea
  • of the Bering Sea
  • of the Davis Sea
  • of the Aegean Sea
  • of the Andaman Sea
  • of the Sea of Azov
  • of the Yellow Sea
  • of the Ionian Sea
  • of the Ligurian Sea
  • of the Sea of Okhotsk
  • of the Tyrrhenian Sea
  • of the Dead Sea
  • of the White Sea
  • of the Red Sea
  • of the Black Sea
  • of the Adriatic Sea
  • of the Arabian Sea

If you choose on of these and your mermaid first name of choice is Ariel, she would be called Ariel of the White Sea etc.

You can of course also create last names that are based on fictional places, like the following:

  • of the Crystal Sea
  • of the 11th Ocean
  • ot the Blooming Sea

Scary and Powerful Mermaid Last Names

If you are writing a story or book about mermaids, there might be dark and evil mermaid characters involved. For those you can try the following mermaid last names.

  • Shadowfin
  • Blackflow
  • Deepcurrent
  • Roughwater
  • Deepblue
  • Underwave
  • Deepdark
  • Saltdoom
  • Sombersea
  • Grimcurrent
  • Desert
  • Deepperil
  • Oeanthunder
  • Stormy
  • Cyclonia (from Cyclone)
  • Wavecrash
  • Deepsea
  • of the Deadzone (areas in the ocean that have low oxygen and almost no marine life)
  • Hurricane (a dangerous tropical storm that forms over the Caribbean and Atlantic Ocean)
  • Sirenia (from the Greek Sirens who lured sailors to death with their voices)
  • from the Forbidden Deep
  • Morbidfins
  • Blackstorm
  • Graytail
  • Blacktail
  • Shadowtail
  • Nightwater
  • Sharpsalt
  • Marinedusk
  • Bleakwater
  • Merlancia (from mer + melancholy)
  • Startlescale
  • Seawitch
  • Blackwater
  • Deepsoulhunter
  • Seawolf
  • Seaserpia / Seaserpentia (sea serpent)
  • Sunkbone
  • Firefoe
  • Ghoswet (ghost + wet)
  • Deepfall
  • Bottomrage
  • Slowsink
  • Whirltrap
  • Aquavort (aqua + vortex)
  • Whirlpool
  • Seabedshiver
  • Sharka (from shark)
  • Eerieblue
  • Waterhaunt
  • Deepdawn
  • Ragespatter
  • Echolost
  • Seabeastly
  • Dissosoul (dissolve + soul)
  • Sharkstabber
  • Pressure
  • Hammerhead (like hammerhead shark)
  • Leviathan (sea monster from Jewish mythology)
  • Tempest
  • Moray (like Moray eel)
  • Murky
  • Riptide
  • Shipwrecker
  • Turbulensea (turbulent + sea)
  • Undertow
  • Seadragon
  • Electra
  • Electreel (electric eel)
  • Black amber
  • Bastard amber
  • Nebuliqui (nebula + liquid)
  • Bottomwater
  • Blackhole
  • Lifegrabber
  • Currentmage
  • Stormsummon

With these gloomy last names, you can create scary and mysterious-sounding mermaid names like for example Nyx Shadowtail (literal meaning: night shadow tail).

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