Spar may refer to:
- Spar (aviation), part of an aircraft
- Spar (grape)
- Spar (mineralogy)
- Spar (platform)
- Spar (retailer), a chain of stores
- Spar (sailing), part of a sailing vessel
- "Spar" (short story), by Kij Johnson
- Spar (tree), part of a cable logging setup
- Spar Aerospace
- Sparring, a form of mock combat
- SPARS, the United States Coast Guard Women's Reserve
- Society of Professional Audio Recording Services
- SPARS code, a code on some compact disc recordings
- Special Program of Assisted Reproduction
- Spartan Motors, Nasdaq symbol SPAR