| JRT | Jack Russell Terriers
| Others |
| JRT | Jaguar Rover Triumph
| Others |
| JRT | James Rodney Throup
| Others |
| JRT | Jeff R Thompson
| Others |
| JRT | Jewish Repertory Theatre
| Others |
| JRT | Joel Real Timing
| Others |
| JRT | Joint Readiness Training
| Others |
| JRT | Joint Regional Teams
| Others |
| JRT | Joint Response Team
| Others |
| JRT | Journal of Reformed Theology
| Others |
| JRT | Journal of Religious Thought
| Others |
| JRT | Jugoslovenska Radio Televizija
| Others |
| JRT | Jumbo Roll Tissue
| Others |
| JRT | Junctional Reciprocating Tachycardia
| Others |
| JRT | Junior Rally Team
| Others |
| JRT | Junkware Removal Tool
| Others |
| JRT | Just Really Terrific
| Others |
| JRT | Justin Randall Timberlake
| Others |
| JRT | Justus Rains Trooth
| Others |