Lanassa

Lanassa was the name of some ancient noble women:
 * the mythical ancestress of the royal dynasty of the Molossians in Epirus. According to some accounts, she is equated with Andromache.
 * Lanassa (wife of Pyrrhus), a daughter of king Agathocles of Syracuse, wife of king Pyrrhus of Epirus and later of the diadoch Demetrius I of Macedon

Lanassa may also refer to:
 * Lanassa (annelid), a genus of polychaetes in the family Terebellidae