| Abbreviation | Definition |
|---|---|
| CRT | Combat Result Table |
| CS | Counter-Strike |
| CS:CZ | Counter Strike: Condition Zero |
| CS:GO | CounterStrike : Global Offensive |
| CSC | Crimson Syndicate Corps |
| CSFE | Comic Sans for Everyone |
| CSG | Create Several Guesses |
| CSGI | Committee for Securing Gaming Integrity |
| CSGO | CounterStrike : Global Offensive |
| CSGO | Counter-Strike: Global Offensive |
| CSN | Cyber Sports Network |
| CSO-NSTPRE | Counter-Strike Organization New Style Type Plus Refresh Edition |
| CSP | Clan Strength Project |
| CSP | Counter Strike Phraggers |
| CSX | Counter Strike Xbox |
| CSZB | Christian Schulte Zu Berge (German: Christian Schulte to Mountains; video gaming) |
| CTF | Capture The Flag |
| CTGPR | Custom Track Grand Prix-Revolution |
| CTPG | Can't Pause The Game |
| CTTX | Capture the Tower X |