| Acronym | Definition |
|---|
| CCSO | Collier County Sheriff's Office (Naples, FL) |
| CCSO | Computing and Communications Service Office |
| CCSO | Canadian Council of Snowmobile Organizations (est. 1974) |
| CCSO | Charlotte County Sheriff's Office (Punta Gorda, FL) |
| CCSO | Crédit Commercial du Sud-Ouest (French bank) |
| CCSO | Charles County Sheriff's Office (Maryland) |
| CCSO | Coconino County Sheriff's Office (Arizona) |
| CCSO | Coalition of Civil Society Organisations |
| CCSO | Cobb County Sheriff's Office (Georgia) |
| CCSO | Clip Case Side Office (various companies) |
| CCSO | Clear Creek County Sheriff's Office (Georgetown, Colorado, USA) |
| CCSO | Central Coal Supply Organisation (India) |
| CCSO | Command & Control Systems Office |
| CCSO | Colorado Congress of Senior Organization |
| CCSO | Cataract, Central Saccular, with Sutural Opacities |
| CCSO | CECOM CALS Support Office |
| CCSO | Cheektowaga Community Symphony Orchestra (Cheektowaga, NY) |