Thalassa (disambiguation)

Thalassa is a personification of the sea in Greek mythology.

Thalassa may also refer to:


 * Thalassa (band), a band which represented Greece at the Eurovision Song Contest 1998
 * Thalassa (beetle), a genus of ladybug
 * Thalassa (moon), a moon of the planet Neptune
 * Thalassa (TV series), a French documentary programme
 * FRENCH SHIP Thalassa, a ship of the Ifremer
 * A fictional planet in Arthur C. Clarke's novel The Songs of Distant Earth
 * A character from the Star Trek original series episode "Return to Tomorrow"
 * Thalassa Gramarye, a fictional musician in the video game Apollo Justice: Ace Attorney