Megaera is one of the Erinyes in Greek mythology.
Megaera may also refer to:
464 Megaira, an asteroid named after the Erinye HMS Megaera (1849), a Royal Navy frigate A taxonomic synonym for Trimeresurus, a genus of pit vipers Megaera, a character in the video game Hades
See also HMS Megaera Megara (mythology), the oldest daughter of Creon, king of Thebes, in Greek mythology Megara (disambiguation)