| Acronym | Definition |
|---|
| OPLA | Office of Patent Legal Administration |
| OPLA | Office of the Principal Legal Advisor (US Immigration and Customs Enforcement) |
| OPLA | Ontario Public Library Association (Canada) |
| OPLA | Office of Policy and Legal Analysis |
| OPLA | Oregon Patent Law Association |
| OPLA | Office of Principal Legal Advisor |
| OPLA | Office of Policy and Legislative Affairs |
| OPLA | Ontario Pipeline Landowners Association (Canada) |
| OPLA | Onset of Plasma Lactate Accumulation |
| OPLA | Operative Laparoscopy |
| OPLA | Offshore Pollution Liability Agreement |
| OPLA | Ozark Professional Locksmiths Association (Little Rock, Arkansas) |
| OPLA | Office of the Principal Legal Adviser |