Hetty is a female first name. It may refer to:
People:
- Hetty Baynes (born 1957), English actress
- Hetty Burlingame Beatty (1907–1971), American sculptor, children's author, and illustrator
- Hetty Cary (1836-1892), a noted beauty of the Confederacy and one of the makers of the Confederate battle flag
- Hetty Green (1834-1916), American businesswoman and notorious miser
- Hetty King (1883-1972), stage name of English music hall entertainer Winifred Emms
Fictional characters:
- Hetty Sorrel, a major character in George Elliot's novel Adam Bede
- Henrietta "Hetty" King, a major character in the television show Road to Avonlea
- Henrietta "Hetty" Lange, from the American television show NCIS: Los Angeles
- Hetty Wainthropp, heroine of the British television series Hetty Wainthropp Investigates
Places:
- Hetty Rock, in Walker Bay, Antarctica