TEP
- IP tunnel
- Labour Party of Turkey
- Society of Trust and Estate Practitioners
- TV and FM DX
- Tallgrass Energy Partners
- Tau Epsilon Phi
- Tep (disambiguation)
- Test of English Proficiency (South Korea)
- The Equity Project
- Thomas Edward Perez
- Tolman electronic parameter
- Totally extraperitoneal herniorrhaphy
- Tracheo-oesophageal puncture
- Transatlantic Economic Partnership
- Transparent exopolymer particles
- Triethyl phosphate
- Tucson Electric Park
- Tucson Electric Power