PTS
- Kind Space
- PEP group translocation
- PTS (amphibious vehicle)
- PTS (gene)
- Pacific Telemanagement Services
- Pali Text Society
- Palmer Trinity School
- Parsonage–Turner syndrome
- Pay to surf
- Peroxisomal targeting signal
- Personal Track Safety
- Peseta (disambiguation)
- Phoronix Test Suite
- Pittsburgh Theological Seminary
- Platinum(II) sulfide
- Point (typography)
- Post-thrombotic syndrome
- Post-traumatic stress
- Potential trouble source
- Presentation time stamp
- Princeton Theological Seminary
- Protestant Truth Society
- Pseudoterminal
- Public Television Service
- Pure type system
- Server (computing)
- Socialist Workers' Party (Argentina)
- Swedish Post and Telecom Authority
- São Toméan Workers Party