TJR may refer to:
- TJR (musician), EDM producer
- Total joint replacement, or replacement arthroplasty, an orthopedic surgery procedure.
- The Jester Race, an album by melodic death metal band In Flames
- T. J. Roberts, Pakistan wildlife authority
- Tajikistani ruble (currency)
Thomas Joseph "T.J." Rozdilsky, more known by his stage name as TJR, is an American DJ and music producer. He has lived in Los Angeles since 2010.