Other Uses
- Protectorate of South Arabia
- PSA International (formerly Port of Singapore Authority), world's second largest port operator
- PSA Peugeot Citroën, French vehicle manufacturer
- Petroleum Safety Authority Norway, a governmental supervisory authority
- PSA prepayment model, developed by the Bond Market Association (formerly the Public Securities Association)
- Primary Systemic Amyloidosis, in which a human body produces "bad proteins"
- Pressure-sensitive adhesive
- Prostate-specific antigen, a protein for which a blood test can be used to detect prostate cancer
- Public service announcement
- Probabilistic safety assessment
- "PSA", precursor to the R.E.M. song "Bad Day"
- "Pseudomonas syringae actinidiae", a variety of a bacteria Pseudomonas syringae that attacks kiwifruit
Read more about this topic: PSA