Sea deities

Immortals 

Sea deities

• Aegaeon
 (Αιγαίων), god of violent sea storms and ally of the Titans

• Acheilos
 (Αχειλος), shark-shaped sea spirit

• Amphitrite
 (Αμφιτρίτη), sea goddess and consort of Poseidone

• Benthesikyme
 (Βενθεσικύμη), daughter of Poseidon, who resided in Ethiopia

• Brizo
 (Βριζώ), patron goddess of sailors, who sent prophetic dreams

• Ceto
 (Κῆτώ), goddess of the dangers of the ocean and of sea monsters

• Charybdis
 (Χάρυβδις), a sea monster and spirit of whirlpools and the tide

• Cymopoleia
 (Κυμοπόλεια), a daughter of Poseidon married to the Giant Briareus

• Delphin (Δέλφιν), the leader of the dolphins, Poseidon placed him in the sky as the constellation Delphin

• Eidothea (Ειδοθέα), prophetic sea nymph and daughter of 
Proteus

• Glaucus
 (Γλαῦκος), the fisherman's sea god

• Gorgons
 (Γοργόνες), three monstrous sea spiritsStheno (Σθεννώ)

• Euryale (Εὐρυάλη)

• Medusa (Μέδουσα), the only mortal of the three

• The 
Graeae (Γραῖαι), three ancient sea spirits who personified the white foam of the sea; they shared one eye and one tooth between themDeino (Δεινώ)

• Enyo (Ενυώ)

• Pemphredo (Πεμφρεδώ)

• The 
Harpies (Ηάρπυιαι), winged spirits of sudden, sharp gusts of windAello (Αελλώ) or Aellope (Αελλώπη) or Aellopous (Αελλόπους)

• Ocypete (Ωκυπέτη) or Ocypode (Ωκυπόδη) or Ocythoe (Ωκυθόη)

• Podarge (Ποδάργη) or Podarke (Ποδάρκη)

• Celaeno (Κελαινώ)

• Nicothoe (Νικοθόη)

• Hippocampi
 (ἱπποκαμπος), the horses of the sea they are half horse with the tail of a fish

• The 
Ichthyocentaurs (Ιχθυοκένταυροι), a pair of centaurine sea-gods with the upper bodies of men, the lower fore-parts of horses, ending in the serpentine tails of fishBythos (Βύθος) "sea depth"

• Aphros (Άφρος) "sea foam"

• Karkinos
 (Καρκίνος), a giant crab who allied itself with the Hydra against Heracles. When it died, Hera placed it in the sky as the constellation Cancer.

• Ladon
 (Λάδων), a hundred-headed sea serpent who guarded the western reaches of the sea, and the island and golden apples of the Hesperides

• Leucothea
 (Λευκοθέα), a sea goddess who aided sailors in distress

• Nereides
 (Νηρηίδες), sea nymphsThetis (Θέτις), leader of the Nereids who presided over the spawning of marine life in the sea

• Arethusa (Αρετούσα), a daughter of Nereus who was transformed into a fountain

• Galene (Γαλήνη), goddess of calm seas

• Psamathe (Πσαμάθη), goddess of sand beaches

• Nereus
 (Νηρέας), the old man of the sea, and the god of the sea's rich bounty of fish

• Nerites
 (Νερίτης), a sea spirit who was transformed into a shell-fish by Aphrodite

• Oceanus
 (Ὠκεανός), Titan god of the Earth-encircling river Oceanus, the font of all the Earth's fresh-water

• Palaemon
 (Παλαίμων), a young sea god who aided sailors in distress

• Phorcys
 (Φόρκυς), god of the hidden dangers of the deep

• Pontos
 (Πόντος), primeval god of the sea, father of the fish and other sea creatures

• Poseidon
 (Ποσειδῶν), king of the sea and lord of the sea gods; also god of rivers, flood and drought, earthquakes, and horses

• Proteus
 (Πρωτεύς), a shape-shifting, prophetic old sea god, and the herdsman of Poseidon's seals

• Scylla
 (Σκύλλα), monstrous sea goddess

• The 
Sirens (Σειρῆνες), sea nymphs who lured sailors to their death with their songAglaope (Αγλαόπη) or Aglaophonos (Αγλαόφωνος) or Aglaopheme (Αγλαοφήμη)

• Himerope (Ίμερόπη)

• Leucosia (Λευκοσία)

• Ligeia (Λιγεία)

• Molpe (Μολπή)

• Parthenope (Παρθενόπη)

• Peisinoe (Πεισινόη) or Peisithoe (Πεισιθόη)

• Raidne (Ραίδνη)

• Teles (Τέλης)

• Thelchtereia (Θελχτήρεια)

• Thelxiope (Θελξιόπη) or Thelxiepeia (Θελξιέπεια)

• The 
Telchines (Τελχινες), sea spirits native to the island of Rhodes; the gods killed them when they turned to evil magicActaeus (Ακταιος)

• Argyron (Αργυρών)

• Atabyrius (Αταβύριος)

• Chalcon (Χαλκών)

• Chryson (Χρυσών)

• Damon (Δαμων) or Demonax (Δημώναξ)

• Damnameneus (Δαμναμενεύς)

• Dexithea (Δεξιθέα), mother of Euxanthios by Minos

• Lycos (Λύκος) or Lyktos (Λύκτος)

• Lysagora (Λυσαγόρα)?

• Makelo (Μακελώ)

• Megalesius (Μεγαλήσιος)

• Mylas (Μύλας)

• Nikon (Νίκων)

• Ormenos (Ορμενος)

• Simon (Σίμων)

• Skelmis (Σκελμις)

• Tethys
 (Τηθύς), wife of Oceanus, and the mother of the rivers, springs, streams, fountains and clouds

• Thalassa
 (Θάλασσα), primeval spirit of the sea and consort of Pontos

• Thaumas
 (Θαῦμας), god of the wonders of the sea

• Thoosa
 (Θόοσα), goddess of swift currents

• Triteia
 (Τριτεια), daughter of Triton and companion of Ares

• Triton
 (Τρίτων), fish-tailed son and herald of Poseidon

• Tritones
 (Τρίτωνες), fish-tailed spirits in Poseidon's retinue