BITS or bits may refer to:
- Binary digits
- Drill bits
- The pieces of a Spanish dollar
- Bits (Beanie Baby), a Beanie Baby bear produced by Ty, Inc.
- Background Intelligent Transfer Service, a file transfer protocol
- Birla Institute of Technology and Science, a technology school in India
- [Bukareshter Idishe Teater-Studie] Error: {{Lang}}: text has italic markup (help) or Bucharest Yiddish Studio Theater, a theater in Bucharest
- BITS was a British television program about computer and video games, hosted by Emily Booth, Aleks Krotoski and Emily Newton Dunn.
- Building Integrated Timing Supply, a standard for distributing a precision clock among telecommunications equipment
- British Isles Traveller Support, a UK based organisation set-up to support the Traveller role-playing game.
- Slang for human genitals
- Comedic UCB Theatre