JR
- JRA – (i) Japanese Red Army – Joint Rear Area
- JRDF – (i) Joint Rapid Deployment Forces
- JRE – (i) Java Runtime Environment
- JREF – (i) James Randi Educational Foundation
- JROC – (i) Joint Requirements Oversight Council
- JROCM – (i) JROC Memorandum
- JRRF – (i) Joint Rapid Reaction Forces
- JRSAI – Journal of the Royal Society of Antiquaries of Ireland
Read more about this topic: List Of Acronyms And Initialisms: J