SJI
| Acronym | Definition |
|---|---|
| SJI | San Juan Islander (Puerto Rico) |
| SJI | State Justice Institute |
| SJI | South Jersey Industries, Inc. |
| SJI | Steel Joist Institute |
| SJI | Seattle Jobs Initiative (Washington) |
| SJI | Saint Joseph's Institution (Singapore secondary school) |
| SJI | Sompo Japan Insurance, Inc. |
| SJI | St James Infirmary (San Francisco, CA) |
| SJI | San Jose, Philippines - McGuire Field (Airport Code) |
| SJI | St. John's Institute (various locations) |
| SJI | Sports Journalism Institute (internship program; est. 1993) |
| SJI | South Jersey Investors, Inc. |