| UCG | UConn Consulting Group 
| Others |
| UCG | Ultimate Coffeeshop Guide
| Others |
| UCG | Undergraduate Consulting Group
| Others |
| UCG | Underground Coal Gasification
| Others |
| UCG | Underground Compressed Gas
| Others |
| UCG | Underneath Coal Gasification
| Others |
| UCG | Unichrome Graphics
| Others |
| UCG | Unidirectional Carbon Grid
| Others |
| UCG | Unified Code Generation
| Others |
| UCG | Unified Command Group
| Others |
| UCG | Unimog Club Gaggenau
| Others |
| UCG | Union Cycliste Gessienne
| Others |
| UCG | Unique Corporate Gifts
| Others |
| UCG | United Calisthenics Groups
| Others |
| UCG | United Christian Giving
| Others |
| UCG | United Church of God
| Others |
| UCG | United Communications Group
| Others |
| UCG | Universal Command Guide
| Others |
| UCG | Universal Commerce Group
| Others |
| UCG | Universal Communications Group
| Others |
| UCG | Universal Connectivity Grid
| Others |
| UCG | Universities Contact Group
| Others |
| UCG | University Center of Greenville
| Others |
| UCG | Univerzitet Crne Gore
| Others |
| UCG | Upper Class Goth
| Others |
| UCG | Urinary Chorionic Gonadotrophin
| Others |
| UCG | Urine Chorionic Gonadotrophin
| Others |
| UCG | Urine Chronic Gonadotropin
| Others |
| UCG | Used Car Guide
| Others |
| UCG | Used Coffee Grounds
| Others |