Exp may stand for:
- Exponential function, in mathematics
- Expiry date of organic compounds like food or medicines
- Experience points, in role-playing games
- EXPTIME, a complexity class in computing
- Ford EXP, a car manufactured in the 1980s
- Exp (band), a UK rock band formed by Paul Mumford
- "EXP", a song by The Jimi Hendrix Experience from the album Axis: Bold as Love