JIT may refer to:
- Various meanings of Just in Time (disambiguation):
- Just-in-time compilation - a technique for improving the performance of virtual machines in computing.
- Just-in-time (business) - a business inventory strategy.
- Jabber ICQ Transport.
Jit may refer to: J.I.T. Juvenile Delinquent in Training: Southern slang used to describe the "Thug" youth element. This term has origins in the "Youth Correctional System".
- Jit, a style of Zimbabwean dance music.
- Jit (town), a Palestinian town in the West Bank.