| Acronym | Definition |
|---|
| RW | Rewind |
| RW | Race Walking |
| RW | Radar Warning |
| RW | Radiation Work |
| RW | Radio Warfare |
| RW | Radio Watch (for ACG forms) |
| RW | Radiological Warfare |
| RW | Radiological Warhead |
| RW | Raging Waters (California water park) |
| RW | Rain Shower (weather reports) |
| RW | Random Walk |
| RW | Rare Ware (game company) |
| RW | RationalWiki (website) |
| RW | Raw Water |
| RW | Reaction Wheel |
| RW | Read-Write |
| RW | Real World |
| RW | Reconnaissance Wing |
| RW | Recurrent Wheezing |
| RW | Red Wine |
| RW | Red Wizard (Final Fantasy game) |
| RW | Relative Work (now Formation Skydiving) |
| RW | Residual Wave |
| RW | Resistance Welding |
| RW | Resourceful Women (San Francisco, CA) |
| RW | Retaining Wall (construction) |
| RW | Retirement Weekly |
| RW | Revolutionary War |
| RW | Rewritable (disk) |
| RW | Ridgetown Waterway |
| RW | Right Waist Gunner |
| RW | Right Wing |
| RW | Rigid Wall |
| RW | Rijkswerf |
| RW | Ringworm |
| RW | Risk Weight |
| RW | River Water |
| RW | Road Warrior |
| RW | Robbie Williams (british singer) |
| RW | Robin Williams (actor) |
| RW | Robot Wars (British TV show) |
| RW | Roca Wear (clothing line) |
| RW | Roger Waters (member of Pink Floyd) |
| RW | Roger Wilco (voice chat over IP) |
| RW | Roll Wrapping |
| RW | Rolling Walker (medical product) |
| RW | Ronald Weasley (Harry Potter character) |
| RW | Root Word |
| RW | Rotary Wing |
| RW | Round the World (airfare construction) |
| RW | Runway |
| RW | Russell Watson (British tenor) |
| RW | Russian Woman |
| RW | Rwanda |
| RW | US Revenue Hunting Permit (Scott Catalogue prefix; philately) |