Every culture that has ever lived near the sea has imagined something magical beneath it.
Ancient Assyria gave us Atargatis, the first mermaid in recorded history, a goddess who transformed herself into a fish from the waist down. The Greeks gave us fifty Nereids, three thousand Oceanids, and the Sirens who lured sailors to their deaths with singing. Norse mythology gave us Rán, who collected drowned sailors in her net. Irish folklore gave us the Merrow and the Selkie. The ocean has always needed mythological inhabitants and the names those traditions created are extraordinary.
Most people naming ocean babies reach for Coral and Marina and Pearl. Those are beautiful. But the genuinely mythological names from these traditions go so much further. Here are 80 of them.
Mythical Girl Names From Greek Sea Mythology
Greek mythology produced more sea beings than any other tradition. The Nereids alone numbered fifty. The Oceanids numbered three thousand. Every river, every spring, every stretch of open water had its own divine feminine inhabitant with a name.
Most of those names have never appeared on a birth certificate outside Greece. Every single one of them is genuinely beautiful.
- Thalassa — The primordial goddess of the sea herself. Not a nymph, not a goddess of the sea. The actual sea personified.
- Amphitrite — Queen of the sea and wife of Poseidon.
- Galene — Nereid of calm seas.
- Thetis — The most famous Nereid. Mother of Achilles.
- Arethusa — A nymph transformed into a freshwater spring to escape a river god.
- Psamathe — Nereid of sandy shores.
- Nausithoe — Nereid whose name means “swift ship.”
- Doto — Nereid of sea creatures.
- Cymothoe — Nereid meaning “swift wave.”
- Dynamene — Nereid meaning “of great power.”
- Eudore — Nereid meaning “generous gift.”
- Galatea — The most famous sea nymph of all, beloved by the Cyclops Polyphemus.
- Calypso — The nymph who kept Odysseus on her island for seven years.
- Circe — The sorceress whose island sat in the middle of the sea.
- Scylla — A sea monster, once a beautiful nymph, transformed by jealousy.
- Charybdis — The whirlpool that threatened Odysseus. Feminine and fearsome.
- Leucothea — A sea goddess who helped sailors in distress. Her name means “white goddess.”
- Ino — A mortal transformed into a sea goddess.
- Brizo — The protector of mariners who sent prophetic dreams.
- Pontomedusa — A sea nymph whose name means “queen of the sea.”
Mythical Boy Names From Greek Sea Mythology
Greek mythology gave the ocean powerful masculine rulers too.
Poseidon ruled all of it. Triton was his son and herald. Nereus was the old man of the sea. Proteus could change his form at will. These names carry the weight of the oldest and deepest tradition of ocean mythology in Western culture.
- Triton — Son of Poseidon. The original merman.
- Nereus — The old man of the sea. Father of the fifty Nereids.
- Proteus — The shape-shifting sea god who could see the future.
- Oceanus — The Titan god who embodied the ocean as a whole.
- Glaucus — A fisherman transformed into a sea god. He had the gift of prophecy.
- Phorcys — An ancient sea god, father of the Graeae and the Gorgons.
- Pontus — The primordial god of the sea, born directly from Gaia.
- Palaemon — A sea god who helped sailors. His name means “wrestler.”
- Neritos — A minor sea deity whose name is connected to the sea snail.
- Eurynomos — A sea deity from ancient Greek tradition.
Irish and Celtic Ocean Names
Irish mythology has a deep and complicated relationship with the sea.
The Merrow are the Irish merpeople, distinguished from mermaids by their magical red caps that allow them to travel between ocean and land. The Selkies are seal-people from Scottish and Irish tradition who shed their skins to walk on land. And the sea god Manannan mac Lir rules a domain that lies just beyond the horizon, a place called TÃr na nÓg where the dead go to feast forever.
- Muirenn — Irish, means “sea white” or “sea fair.” A woman transformed into a mermaid in Irish legend.
- Muirgen — Irish, means “born of the sea.” A human transformed into a mermaid who lived for three hundred years.
- Fand — Wife of Manannan mac Lir, goddess of the sea.
- Manannan — The Irish god of the sea himself.
- Niamh — Pronounced “NEEV.” The golden-haired princess of TÃr na nÓg, the land across the sea.
- ClÃodhna — Pronounced “KLEE-na.” Goddess of beauty and love who came from across the sea.
- Lir — The Irish sea god whose children were transformed into swans.
- Selkie — The seal-people from Scottish and Irish folklore.
- Merrow — The Irish term for merpeople.
- Rón — Irish word for seal, connected to Selkie mythology.
Norse Ocean Names
The Norse relationship with the sea was not romantic.
It was terrifying and necessary. Rán was the goddess of the drowned, collecting souls in her net. Ægir was the ocean personified, a giant who hosted feasts for the gods at the bottom of the sea. Jörmungandr was the World Serpent coiled around the ocean floor. Norse ocean names carry that quality. They are not soft. They are elemental.
- Rán — Norse goddess of the sea who collected drowned sailors in her net.
- Ægir — Norse personification of the ocean.
- Njord — Norse god of the sea, wind, and fishing.
- Undine — A water elemental from Northern European folklore.
- Ran — Simplified form of Rán. Short, powerful, completely Scandinavian.
- Hel — Rules the realm of the dead, connected to the sea through Norse cosmology.
- Nix — A shape-shifting water spirit from Germanic and Norse mythology.
- Nixie — The feminine form of Nix. A water sprite.
- Lorelei — From German folklore, a siren who sat on a rock in the Rhine and lured sailors to their deaths.
- Melusine — A French water spirit, half woman and half fish or serpent.
Ocean Names That Mean Sea or Water
Not all mythological ocean names come from specific traditions.
Some are simply the word for sea or water or wave in different languages, each one carrying the specific sound of its tradition while meaning the same elemental thing. These are the most direct ocean names possible. The sea named directly.
- Thalassa — Already listed but the Greek word for sea itself is extraordinary enough to appear twice.
- Marina — Latin, means “of the sea.”
- Sereia — Portuguese, means “mermaid.”
- Rusalka — Slavic, a water nymph. The word for mermaid in Russian and Ukrainian.
- Syrenka — Polish folklore, their version of the mermaid.
- Naia — Basque, means “wave.” Also Hawaiian, connected to the sea.
- Moana — Hawaiian, means “ocean.”
- Kai — Hawaiian, means “sea.”
- Kailani — Hawaiian, means “sea and sky.”
- Atargatis — The first mermaid in recorded history, from ancient Assyria.
- Meri — Finnish and Maori, means “the sea.”
- Del Mar — Spanish, means “from the sea.”
- Océane — French form of Ocean. Widely used in France.
- Lago — Spanish, means “lake.”
- Mare — Latin, means “the sea.”
Beautiful Ocean Baby Names for Girls
Beyond the specifically mythological, ocean and water carry names across dozens of traditions that feel genuinely beautiful without requiring any knowledge of mythology to love.
These are the ones that carry the sea through sound and meaning, names that feel alive and fluid and connected to something vast.
- Coral
- Pearl
- Marina
- Ondine — A water nymph from European folklore.
- Nixie — A water sprite.
- Galatea
- Ariel — Hebrew, means “lion of God,” but also the most famous fictional mermaid.
- Sabrina — A water nymph from Celtic legend, connected to the River Severn.
- Nerissa — Shakespearean name connected to the sea. Nereid derivative.
- Calypso
Beautiful Ocean Baby Names for Boys
- Triton
- Caspian — The name of a sea and the Chronicles of Narnia prince who ruled it.
- Reef
- Kai
- Morgan — Welsh, means “sea protector.”
Wrapping Up
80 mythical ocean baby names, from the ancient goddesses of Greek tradition to the mermaids of Irish folklore to the water spirits of Norse mythology.
The ocean has been inspiring names for as long as people have lived near it. The best ones are not the obvious ones. They are the names from the deep parts of these traditions that most parents have never thought to look at. Go through the ones that stopped you. Say them out loud slowly. Ocean names have a specific quality when spoken. They move.