| Acronym | Definition |
|---|
| ATSP | Asymmetric Traveling Salesman Problem |
| ATSP | Association of Telemedicine Service Providers |
| ATSP | American Tree Sparrow |
| ATSP | Air Traffic Service Provider (FAA term for all disciplines of air traffic controllers) |
| ATSP | Advanced Technology Support Program (precompeted umbrella contracting vehicle) |
| ATSP | Automated Temperature Selection Procedure (rivers; California) |
| ATSP | Airport Tenant Security Program (various companies) |
| ATSP | ADTRAN Technical Support Professional |
| ATSP | Associazione Treni Storici Puglia (Association of Historical Trains in Puglia; Taranto, Italy) |
| ATSP | Asked to See Patient |
| ATSP | Academic Technology Support Personnel |
| ATSP | Advanced Tactical Supervisor's Panel |
| ATSP | Association pour la Promotion des Soins Palliatifs (French: Association for Promotion of Palliative Care) |
| ATSP | Agreed To Strategy & Plan (insurance providers and litigators) |
| ATSP | Applications Telecommunications Service Provider (IPX) |
| ATSP | All Things Steve Perry (fan forum) |