| Abbreviation | Definition |
|---|---|
| CWR | Cross World Racing |
| CWR | Cyber Wrestling Revolution |
| CWRQ | Car Wars Referee Questionnaire |
| CWS | Chicago White Sox |
| CWS | College World Series |
| CWSA | Collegiate Women Sports Awards |
| CXS | Constructors of Xtreme Sports |
| CY | City Young |
| CYC | Cleveland Yacht Club |
| CYG | Choose Your Game |
| CYSL | Calaveras Youth Soccer League |
| D | Defense |
| D | Double |
| D | Dunced |
| D/N | Day & Night |
| DA | Distance Accuracy |
| DAAA | Dwarf Athletic Association of America |
| DAAS | Doug Anthony All Stars |
| DABA | Dallas Amateur Baseball Association |
| DAC | Drive, Attitude, and Confidence |