| 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) |