There are many deities associated with the sea across many different cultures and civilisations. Below is just a basic outline to some of the most common deities - it is by no means an exhaustive list, or all of the information on them out there!
Abzu: Mesopotamian God of fresh water, a father to all of the Gods
Aegaeon: Greek God of violent sea storms
Amphitrite: Greek sea Goddess, Queen of the sea. Consort of Poseidon
Ægir: Norse God, a personification of the sea
Anuket: An Egyptian Goddess of the Nile, which nourished the fields and the crops
Atlaua: Aztec God of water, archers, and fishermen
Belisima: Celtic Goddess of lakes, rivers, fire, crafts, and light
Brizo: Greek God of sailors
Ceto: Greek Goddess of sea monsters, who represents the dangers of the oceans
Chalchiuhtlicue: Aztec Goddess of water, lakes, rivers, seas, streams, horizontal waters, storms, and baptism
Cliodhna: Celtic Goddess of the sea; see the 'deities' section on this website for more information on her, as she is a deity I work with a lot, and would absolutely recommend her to those new to sea magick
Danu: Celtic Goddess of rivers, was the mother of all Gods and Goddesses under the Tuathe De Danann
Enbilulu: Mesopotamian God of rivers and canals
Enki: Mesopotamian God of water, and the Tigris river
Father Thames: An old English personification of the rover Thames which flows through the UK
Freyr: Norse God of rain, sulight, fertility, and summer
Hapi: Egyptian God, responsible for the yearly flooding of the Nile which was crucial to the harvest
Khnum: Egyptian God of the Nile
Li Ban: Celtic Goddess of the sea
Lir: Celtic God of the sea
Manannan Mac Lir: Celtic God of the sea
Marduck: Mesopotamian God of water, vegetation, magic, and justice
Mazu: Chinese Goddess of the sea, and protector of seafarers
Nantosuelta: Celtic Goddess of rivers, fire, earth, healing, and fertility. I have to admit, I worked with Nantosuelta for a long while, and felt her connection to earth and fire much more strongly than water
Nammu: Mesopotamian Goddess of the primordial waters
Nehalennia: Norse Goddess of the North Sea
Nodens: Celtic God associated with the sea, healing, hunting and dogs
Nephthys: Egyptian Goddess of rivers, the dead, and the night
Neptune: Roman God, King of the sea
Njord: Norse, God of the sea and seafaring
Nu: Egyptian God, personification of the primordial waters
Ohoyamatsumi: Japanese God of the sea, mountains, and war
Pontus: Greek Primerval God of the sea, father of fish and other sea creatures
Poseidon: Greek God and King of the sea Gods, floods, droughts, earthquakes, and horses
Proteus: Greek, a shape-shifting, prophetic old Sea God
Rab: Norse sea Goddess of death who collects those who have drowned in her net. Wife of Ægir
Salacia: Roman Goddess of saltwater, consort of Neptune
Satet: Egyptian Goddess of the floods of the Nile
Sumiyoshi Sanjin: Japanese God of the ocean, and sailing
Susanoo: Shinto God of the sea, and storms
Tiamat: Mesopotamian Goddess of salt water, chaos, and the mother of all Gods
Tefnut: Egyptian Goddess of water, moisture, and fertility
The Nine Daughters of Ægir: Norse, personification of the waves
Tlāloc: Aztec God of water, fertility, and rain
Triton: Greek, fish-tailed son of Poseidon
Varuna: Hindu God of the ocean
Vedenemo: Finnish Goddess of water
Vellamo: Finnish Goddess of the sea, lakes, and storms
Abzu: Mesopotamian God of fresh water, a father to all of the Gods
Aegaeon: Greek God of violent sea storms
Amphitrite: Greek sea Goddess, Queen of the sea. Consort of Poseidon
Ægir: Norse God, a personification of the sea
Anuket: An Egyptian Goddess of the Nile, which nourished the fields and the crops
Atlaua: Aztec God of water, archers, and fishermen
Belisima: Celtic Goddess of lakes, rivers, fire, crafts, and light
Brizo: Greek God of sailors
Ceto: Greek Goddess of sea monsters, who represents the dangers of the oceans
Chalchiuhtlicue: Aztec Goddess of water, lakes, rivers, seas, streams, horizontal waters, storms, and baptism
Cliodhna: Celtic Goddess of the sea; see the 'deities' section on this website for more information on her, as she is a deity I work with a lot, and would absolutely recommend her to those new to sea magick
Danu: Celtic Goddess of rivers, was the mother of all Gods and Goddesses under the Tuathe De Danann
Enbilulu: Mesopotamian God of rivers and canals
Enki: Mesopotamian God of water, and the Tigris river
Father Thames: An old English personification of the rover Thames which flows through the UK
Freyr: Norse God of rain, sulight, fertility, and summer
Hapi: Egyptian God, responsible for the yearly flooding of the Nile which was crucial to the harvest
Khnum: Egyptian God of the Nile
Li Ban: Celtic Goddess of the sea
Lir: Celtic God of the sea
Manannan Mac Lir: Celtic God of the sea
Marduck: Mesopotamian God of water, vegetation, magic, and justice
Mazu: Chinese Goddess of the sea, and protector of seafarers
Nantosuelta: Celtic Goddess of rivers, fire, earth, healing, and fertility. I have to admit, I worked with Nantosuelta for a long while, and felt her connection to earth and fire much more strongly than water
Nammu: Mesopotamian Goddess of the primordial waters
Nehalennia: Norse Goddess of the North Sea
Nodens: Celtic God associated with the sea, healing, hunting and dogs
Nephthys: Egyptian Goddess of rivers, the dead, and the night
Neptune: Roman God, King of the sea
Njord: Norse, God of the sea and seafaring
Nu: Egyptian God, personification of the primordial waters
Ohoyamatsumi: Japanese God of the sea, mountains, and war
Pontus: Greek Primerval God of the sea, father of fish and other sea creatures
Poseidon: Greek God and King of the sea Gods, floods, droughts, earthquakes, and horses
Proteus: Greek, a shape-shifting, prophetic old Sea God
Rab: Norse sea Goddess of death who collects those who have drowned in her net. Wife of Ægir
Salacia: Roman Goddess of saltwater, consort of Neptune
Satet: Egyptian Goddess of the floods of the Nile
Sumiyoshi Sanjin: Japanese God of the ocean, and sailing
Susanoo: Shinto God of the sea, and storms
Tiamat: Mesopotamian Goddess of salt water, chaos, and the mother of all Gods
Tefnut: Egyptian Goddess of water, moisture, and fertility
The Nine Daughters of Ægir: Norse, personification of the waves
Tlāloc: Aztec God of water, fertility, and rain
Triton: Greek, fish-tailed son of Poseidon
Varuna: Hindu God of the ocean
Vedenemo: Finnish Goddess of water
Vellamo: Finnish Goddess of the sea, lakes, and storms
