| Abbreviation | Definition |
|---|---|
| AJR | Accelerated Junctional Rhythm |
| AJR | Adam Jack and Ryan |
| AJR | Adam Jack Ryan |
| AJR | Administratively Judged Resolved |
| AJR | Alfredo J Rivero |
| AJR | Am J Roentgenol |
| AJR | Artist Jazz Recordings |
| AJS | A J Stevens |
| AJS | Amec Jacobs Stork |
| AJS | American Judicature Society |
| AJS | Association for Jewish Studies |
| AJS | Ayda Jebat Screamers |
| AJSR | Academia Journal of Scientific Research |
| AJSR | Acting Joint Special Representative |
| AJSR | African Journal Of Science And Research |
| AJSR | American Jacob Sheep Registry |
| AJSR | Australian Journal of Soil Research |
| AJT | Active Jewish Teens |
| AJT | Atlanta Jewish Times |
| AJT | Avanced Jet Trainer |