| Term | Full Form | Category |
|---|---|---|
| SJN | Law Offices of Stephen J. Nolan | Others |
| SJN | Saint John Neumann | Others |
| SJN | Salve J Nilsen | Others |
| SJN | San Jose Network | Others |
| SJN | San Juan Rough Riders | Others |
| SJN | Shortest Job Next | Others |
| SJN | Signal-to-Jammer Noise | Others |
| SJN | Simon Joas Netpage | Others |
| SJN | Single Jewish Nutcase | Others |
| SJN | Social Justice Network | Others |
| SJN | Solectron Japan and | Others |
| SJN | Solusi Jaringan Nirkabel | Others |
| SJN | South Jersey Network | Others |
| SJN | Southern Job Network | Others |
| SJN | Southern Jumbo Nat | Others |
| SJN | Southern Jumbo Natural | Others |
| SJN | St John Neumann | Others |
| SJN | St. Johns, Arizona USA | Others |