| CS&OP | Certified Sales & Operations Planning 
| Others |
| CSOP | Canadian School of Peacebuilding
| Others |
| CSOP | Carbon Sequestration And Oxygen Production
| Others |
| CSOP | Center for the Study of Oneness Pentecostalism
| Others |
| CSOP | Certification Services Oversight Process
| Others |
| CSOP | Certified Securities Operations Professional
| Others |
| CSOP | Charity Series of Poker
| Others |
| CSOP | Commission to Study the Organization of Peace
| Others |
| CSOP | Company Share Option Plans
| Others |
| CSOP | Crew Systems Operating Procedures
| Others |
| CSOP | Cybersecurity Standardized Operating Procedures
| Others |