| Abbreviation | Definition |
|---|---|
| RRGT | Rapid Response Goalie Training |
| RRH | Ratio Of Rejected Hypotheses |
| RRH | Remote Radar Head |
| RRH | Remote Radio Head |
| RRH | Remote Radio Heads |
| RRHA | Replaced Right Hepatic Artery |
| RRHA | Residual Right Heart Anomalies |
| RRHA | Right Replaced Hepatic Artery |
| RRHF | Rock and Roll Hall of Fame |
| RRHS | River Region Human Services |
| RRI | R to R interval |
| RRI | Radio Romania International |
| RRI | Raman Research Institute |
| RRI | Rapid Results Institute |
| RRI | real residential investment |
| RRI | Relative Rate Index |
| RRI | Renal Research Institute |
| RRI | Renal Risk Index |
| RRI | replacement ratio in |
| RRI | Report to report Interphase |