| Acronym | Definition |
|---|
| GCSR | Golf Club Swiss Re (Switzerland) |
| GCSR | Gulf, Colorado, and San Saba Railway (Brady, TX) |
| GCSR | Gestionnaires de la Conformité et de la Sécurité Routière (French: Compliance Managers and Road Safety; Canada) |
| GCSR | Grand Canyon South Rim (Arizona) |
| GCSR | Governance and Corporate Social Responsibility (Canada and Australia) |
| GCSR | Grating-Coupled Sampled Reflector |
| GCSR | Global Corporate Social Responsibility |
| GCSR | Global Control/Status Register (computing) |
| GCSR | Grants, Contracts and Sponsored Research (Oakland, CA) |