Leda may refer to:

Mythology

* Leda (mythology), queen of Sparta and mother of Helen of Troy in Greek mythology

Places

* Leda, Western Australia, a suburb of Perth, Western Australia * Leda makeshift settlement, Bangladesh, a refugee camp for Rohingya refugees fleeing persecution in Myanmar * Leda, Burkina Faso, a town * Leda, Adamawa State, Nigeria, a village - see List of villages in Adamawa State * Leda (river), a tributary of the Ems in Germany * Leda Ridge, Antarctica

Astronomy

* Leda (moon), a moon of Jupiter * 38 Leda, an asteroid * Leda, the original proposed name for exoplanet Pollux b, Thestias * Lyon-Meudon Extragalactic Database, an astronomical catalog of galaxies * Large Aperture Experiment to Detect the Dark Ages, a radio interferometer

Entertainment

* ''Leda: The Fantastic Adventure of Yohko'', a 1985 Japanese OVA * ''Web of Passion'', a French film released in the US as ''Leda'' * Project Leda, a set of female clones in the TV series ''Orphan Black''

Ships

* ''Leda-class frigate'', a type of frigate in the British Royal Navy * HMS Leda, HMS ''Leda'', six ships of the British Royal Navy * TS Leda, TS ''Leda'', a North Sea ferry * Leda (1807 ship), ''Leda'' (1807 ship), an English merchant ship and West Indiaman

Persons

* Leda Cosmides (born 1957), American psychologist * Leda Gloria (1912–1997), Italian film actress * Leda Luss Luyken (born 1952), Greek/American conceptual artist, who lives and works in German * Leda Mileva (1920–2013), Bulgarian writer, translator and diplomat * Leda Nagle (born 1951), Brazilian journalist and TV presenter * Leda Sanford (born 1933), author, speaker, former publisher and former advertising director * Ferdinando Leda (born 1980), Brazilian football player

Other uses

* Leda clay, also called quick clay, a unique form of marine clay * LEDA, ICAO code for Lleida–Alguaire Airport * Library of Efficient Data types and Algorithms (LEDA) * Leda (algae), Leda, genus of Algae