| Abbreviation | Definition |
|---|---|
| CUB | Concordia University Baseball |
| CUBS | Can't Understand Baseball Strategy |
| CUBS | Chicago's Uniformed Baseball Stars |
| CUBS | Chicago's United Baseball Society |
| CUBS | Completely Useless By September |
| CWBL | California Women's Baseball League |
| CWBL | Chicago Women's Baseball League |
| CWS | Chicago White Sox |
| CYB | Carlsbad Youth Baseball |
| CYB | Casper Youth Baseball |
| CYB | Chandler Youth Baseball |
| DABA | Dallas Amateur Baseball Association |
| DBL | Double |
| DCBA | Daly City Baseball Association |
| DCBA | Deep Creek Baseball Association |
| DDBL | Digital Diamonds Baseball League |
| DET | Detroit Tigers |
| DH | Designated Hitter |
| DILB | Dubuque Independent League Baseball |
| DIPS | Defense Independent Pitching Statistic |