Eviota is a genus of fish in the family Gobiidae. Together with members of the genus Trimma, they are known commonly as dwarfgobies or pygmygobies. The genus is native to the Indo-Pacific region, where it is distributed from Japan to Australia and from Africa to Pitcairn Island. Species are mainly associated with coral reefs. Some of these fish are short-lived, with life cycles as brief as 3.5 weeks in the tropics. Some species are hermaphrodites and some representatives live symbiotically among the tentacles of the mushroom coral Heliofungia actiniformis.