| Acronym | Definition |
|---|
| COSP | Circle of Safe Parenting (course) |
| COSP | Conference of State Parties (United Nation Convention Against Corruption) |
| COSP | Choeur et Orchestre de Sciences-Po (French choir and orchestra) |
| COSP | Consumer Operated Service Program |
| COSP | Compagnie d'Organisation des Salons des Professions (French trade fair organizer) |
| COSP | Commencement of Sea Passage |
| COSP | Community Offender Support Program (Australia) |
| COSP | Centre d'Orientation Scolaire et Professionnelle et de Psychologie Scolaire (Switzerland) |
| COSP | Community for Open Source Promotion |
| COSP | Code of Standard Practice (AISC) |
| COSP | Conférence d’Orientation Stratégique et de Programmation (Conference on Strategic Orientation and Planning) |
| COSP | Certified Ogone Solution Provider |
| COSP | Connection-Oriented Session Protocol |
| COSP | Customer-Owned Outside Plant |
| COSP | Canadian Oil Substitution Program |
| COSP | City of Self Pity (Liverpool nickname; UK) |
| COSP | Continued Operational Safety Program (aviation) |
| COSP | Commander, Oceanographic Systems, Pacific |