| Abbreviation | Definition |
|---|---|
| JSS | Junior Secondary School |
| JSSAP | Jesuit Secondary School Administrator Program |
| JSSC | Joint Staff School Committee |
| JSSC | Junior Secondary School Certificate |
| JSSD | Jayne Seymour School Of Dance |
| JSSD | Joint School of Sustainable Development |
| JSSE | Jamaica School for Social Entrepreneurship |
| JSSG | Junior School Supporters Group |
| JSSIS | Jagadguru Sri Shivarathreeshwara Swamikal Maha Vidyalaya International School |
| JSSIS | JSS International School |
| JSSL | Joint Services School for Linguists |
| JSSL | Junior Soccer School and League |
| JSSS | John Sugden Swim School |
| JSST | JACT Summer Schools Trust |
| JSSU | Joint School Social Union |
| JST | Jesuit School of Theology |
| JSV | Journal of School Volunteers |
| JSV | Junior School Vlaskamp |
| JTDS | Joseph T. Donahue School |
| JTHS | Jefferson Township High School |