WATER IN MYTHOLOGY

Here are some water deities in various mythologies. 

MYTHOLOGY	NAME	TITLE
Aztec	Chalchiuhtlatonal	God of water
	Tlaloc	God of rain, fertility, and water
	Chalchiuhtlicue	Goddess of lakes, rivers, seas, streams, horizontal waters, storms, and baptism
Canaanite	Yam	God of rivers and the sea
Celtic	Acionna	Goddess of water
	Lir	God of the sea
Chinese	Gong Gong	Water god (responsible for great floods)
Egyptian	Khnum	God of creation and the waters
	Tefnut	Goddess of rain
Greek	Poseidon	King of the sea and lord of the sea gods; god of rivers, storms, flood and drought, earthquakes, and horses
	Pontus	Primeval god of the sea, father of the fish and other sea creatures
Finnish	Ahti	God of the depths and fish
	Vedenemo	Goddess of water
Hindu	Ganga	Goddess of the Ganges River
	Apam Napat	God of fresh water
Japanese	Suijin, Shinto	God of water
Roman	Neptune	King of the sea
	Volturnus	God of the waters

(Credits: "Water Deity", Wikipedia The Free Encyclopedia, <http://en.wikipedia.org/wiki/Water_deity>)