| Acronym | Definition |
|---|
| GRCS➣Gambling Related Cognitions Scale (psychology questionnaire) |
| GRCS➣Guardrail Common Sensor (US Army) |
| GRCS➣Global Regulatory Compliance System |
| GRCS➣Grand Rapids Christian Schools (Grand Rapids, MI) |
| GRCS➣Good Rigging Control System (arborist rigging device) |
| GRCS➣Grenada Red Cross Society (est. 1955; St. George's, Grenada) |
| GRCS➣Georgian Red Cross Society |
| GRCS➣Governance Risk and Compliance Services (India) |
| GRCS➣Genetic Resources Communications Systems (est. 1985) |