| Abbreviation | Definition |
|---|---|
| JMHS | Jordan-Matthews High School |
| JML | J. Michael Lunsford |
| JMLS | John Marshall Law School |
| JMS | Jefferson Middle School |
| JMSB | John Molson School of Business |
| JMSS | John Monash Science School |
| JMST | Jupiter Middle School of Technology |
| JNHS | Jim Ned High School |
| JNHS | Juban National High School |
| JNV | Jawahar Navodaya Vidyalaya |
| JNY | Jakarta Nanyang School |
| JOES | Jose Ortega Elementary School |
| JOHS | John Overton High School |
| JOSN | Journal of School Nursing |
| JPHS | Jefferson Preparatory High School |
| JPMS | John Poole Middle School |
| JPPS | Jewish People's and Peretz Schools |
| JPPS | John Purchase Public School |
| JPPSS | Jefferson Parish Public School System |
| JPS | Jackson Public Schools |