Hedy (/ˈhɛdi/) is a German given name and a diminutive form of Hedwig. Notable people with the name include:
Hedy Bienenfeld (1907–1976), Austrian swimmer
Hedy Burress (born c. 1973), American actress
Hedy d'Ancona (born 1937), Dutch politician, geographer, and sociologist
Hedy Epstein (born 1924), German-born Jewish-American political activist
Hedy Frank-Autheried (1902–1979), Austrian composer
Hedy Fry (born 1941), Trinidadian-Canadian politician and physician
Hedy Graf (1926–1997), Spanish-born Swiss classically trained soprano
Hedy Iracema-Brügelmann (1879–1941), German operatic soprano of Brazilian birth
Hedy Klineman, American painter
Hedy Lamarr (1914–2000), Austrian-American film actress and inventor
Hedy Schlunegger (1923–2003), Swiss alpine skier
Hedy Scott (born 1946), Belgian-American model and actress
Hedy Stenuf (1922–2010), Austrian figure skater who later competed for France and the United States
Hedy West (1938–2005), American folksinger and songwriter