English abbreviations from rsj to rso
- RSJ (Rolled Steel Joist (construction))
- RSK (Risk)
- RSL (Russell Municipal Airport)
- RSLC (Republican State Leadership Committee)
- RSM (Rock Solid Mates)
- R.S.M. (Regimental Sergeant Major)
- RSN (Renal support network)
- RSNC (Royal Society for Nature Conservation)
- RSNF (Royal Saudi Naval Force)
- RSO (Rapid Scan Operation)
