CPSA
- Caborrojeños Pro Salud y Ambiente
- Canadian Political Science Association
- Canadian Professional Sales Association
- China Practical Shooting Association
- Church of the Province of Southern Africa
- Civil and Public Services Association
- Clay Pigeon Shooting Association
- College of Physicians and Surgeons of Alberta
- Communist Party in Saudi Arabia
- Communist Party of South Africa
- Consumer Product Safety Act
- The Center for Palladian Studies in America, Inc.