| Acronym | Definition |
|---|
| SPSJ➣Spectroscopical Society of Japan (est. 1951) |
| SPSJ➣Society of Polymer Science, Japan |
| SPSJ➣Spark Plasma Sintering/Joining (materials) |
| SPSJ➣Sport Parachutist's Safety Journal |
| SPSJ➣St. Peter's and St. James' (Hereford, England, UK) |