CWRR
| Acronym | Definition |
|---|---|
| CWRR | California Western Railroad |
| CWRR | Centre for Water Resources Research (est. 1989; Department of Civil Engineering; University College Dublin; Dublin, Ireland) |
| CWRR | Call Waiting Reminder Ring (telecommunications) |
| CWRR | Commercial Waste Reduction and. Recycling |
| CWRR | Centrum Wspierania Rozwoju Rodziny (Polish: Development Support Center for Families; Poland) |