PTAN
| Acronym | Definition |
|---|---|
| PTAN | Partial Tangent |
| PTAN | Provider Transaction Access Number (medicare reimbursements) |
| PTAN | Part Time as Needed (various organizations) |
| PTAN | Precision Terrain Aided Navigation |
| PTAN | Performance Testing Alliance for Networks |
| PTAN | Airman, Photographic Intelligenceman Striker (Naval Rating) |
| PTAN | Parent Teacher Action Network (Oregon) |