| Acronym | Definition |
|---|
| RGC | Research Grants Council (Hong Kong; est. 1991) |
| RGC | Roanoke Gas Company (Virginia) |
| RGC | Routing Group Connector (Microsoft) |
| RGC | Retro-Gaming Connexion (French gaming association) |
| RGC | Regional Germplasm Centre |
| RGC | Reception and Guidance Center |
| RGC | Renegade Gaming Community (online community) |
| RGC | Rénovation Générale de Cuves (French: General Tank Renovation) |
| RGC | Référentiel Génie Civil (French: Benchmark Civil Engineering) |
| RGC | Repair Group Category |
| RGC | Resource-Guaranteed Connection |
| RGC | Rainbow Group of Companies, Inc. |
| RGC | Receiver Gain Control (computing) |
| RGC | Radar Ground Clutter |
| RGC | Règlement Général de la Construction (French: General Rules of Construction) |
| RGC | Registered Genetic Counsellor |
| RGC | Raising God's Children (ministry; Lowville, NY) |
| RGC | Rio Grande City (Texas) |
| RGC | Residential General Contractor |
| RGC | Retribution Gospel Choir (Christian band) |
| RGC | Retinal Ganglion Cell |
| RGC | Royal Government of Cambodia |
| RGC | Residential Group Care (child welfare youth placement) |
| RGC | Robert Graham Center (Washington, DC) |
| RGC | Railroad Grade Crossing (infrastructure) |
| RGC | Responsible Gambling Council |
| RGC | Reserve Grand Champion (competition) |
| RGC | Office of Research Grants and Contracts (various schools) |
| RGC | Revolutionary Guard Corps (Iran) |
| RGC | Riverside Golf Club (Riverside, IL) |
| RGC | Red Grape Concentrate (wine) |
| RGC | Royal Glenora Club (Canada) |