PJI
| Acronym | Definition |
|---|---|
| PJI | Prosthetic Joint Infection |
| PJI | Pacific Justice Institute (Sacramento, CA) |
| PJI | Pattern Jury Instructions |
| PJI | Parachute Jumping Instructor |
| PJI | Prejudgement Interest (civil litigation) |
| PJI | Polyposis, Juvenile Intestinal |
| PJI | Proper Job Instruction |
| PJI | Pacific Jetting International, Inc. |
| PJI | Phase Jump Inhibiter (Sins of a Solar Empire video game) |