PTAS
| Acronym | Definition |
|---|---|
| PTAS | Pesetas (Spanish currency before January 1, 2002) |
| PTAS | Polynomial-Time Approximation Scheme (theoretical computer science) |
| PTAS | Patent and Trademark Assignment System |
| PTAS | Pakistan Telecommunication Authority Standards |
| PTAS | Passive Towed Array Sonar |
| PTAS | Product-specific Technical Assisted Support |
| PTAS | Policy, Training and Analysis Service (US Department of Education) |