Looper can refer to:
- a (usually electronic) tool for looping, in music
- a person who uses such a tool, a "loopist"
- Looper (band), a Scottish indie-pop band
- Looper (film), a 2012 American science fiction film
- The Cabbage looper (Trichoplusia ni), a member of the moth family Noctuidae
- an inchworm
- a golf Caddy
Looper is also a surname:
- Aaron Looper (born 1976), former baseball relief pitcher
- Braden Looper (born 1974), former baseball pitcher
- Byron Looper (born 1964), former politician and murderer
- Jan de Looper (1914–1987), Dutch field hockey player who competed in the 1936 Summer Olympics
- Marsha Looper (born c. 1959), Colorado legislator
- Willem De Looper (1932–2009), American abstract artist and chief curator at the Phillips Collection