| PJI | Pacific Jazz Institute
| Others |
| PJI | Pacific Jetting International
| Others |
| PJI | Pacific Justice Institute
| Others |
| PJI | Pacific Justice, Inc.
| Others |
| PJI | Parachute Jumping Instructor
| Others |
| PJI | Patriot Jeepers Inc.
| Others |
| PJI | Pattern Jury Instructions
| Others |
| PJI | Paul Johnson Illustration
| Others |
| PJI | Peace and Justice Institute
| Others |
| PJI | Periprosthetic Joint Infection
| Others |
| PJI | Perry Johnson Inc
| Others |
| PJI | Perry Johnson, Inc.
| Others |
| PJI | Pretrial Justice Institute
| Others |
| PJI | Promise of Justice Initiative
| Others |
| PJI | Prosthetic Joint Infection
| Others |
| PJI | Prosthetic Joint Infections
| Others |