PTIA
| Acronym | Definition |
|---|---|
| PTIA | Piedmont Triad International Airport (Greensboro, NC) |
| PTIA | Performance Trust Investment Advisors (Chicago, IL) |
| PTIA | Pennsylvania Technology Investment Authority |
| PTIA | Perte Totale Irréversible d'Autonomie (French: Total and Irreversible loss of Autonomy) |
| PTIA | Percutaneous Transhepatic Intraportal Administration (internal medicine) |
| PTIA | Protracted Transient Ischemic Attack |