| Abbreviation | Definition |
|---|---|
| CR | Cup Racer |
| CRA | Coaster Riders Of America |
| CRA | Complete Rowing Anarchy |
| CRA | Cool Running Association |
| CRAB | Chesapeake Region Accessible Boating |
| CRAFT | Coaching Running Administering Forensics Tips |
| CRAG | Cyclists Rights Action Group |
| CRAM | Catamaran Racing Association of Michigan |
| CRB | Chabab Riadhi Belouizdad |
| CRB | Core Rule Book |
| CRC | Clean Racers Club |
| CRC | Cortez Race Committee |
| CRCA | Canadian Race Communications Association |
| CRCA | Canadian Recreational Canoeing Association |
| CRCA | Century Road Club Association |
| CRCA | Collegiate Rifle Coaches Association |
| CRGH | Coulee Region Girl's Hockey |
| CRIS | Costa Rican International Sportsbook |
| CROW | Cyber Realm Of Wrestling |
| CROW | Cycle Run Or Walk |