| Acronym | Definition |
|---|
| GCU➣Grand Canyon University (Phoenix, Arizona, USA) |
| GCU➣Glasgow Caledonian University |
| GCU➣Glasgow Caledonian University (UK) |
| GCU➣Groupement des Campeurs Universitaires (French camp association) |
| GCU➣Grid Compute Utility |
| GCU➣Government College University (Lahore, Pakistan) |
| GCU➣Generator Control Unit |
| GCU➣Greek Catholic Union |
| GCU➣Ground Cooling Unit |
| GCU➣General Contact Unit (fiction) |
| GCU➣Gas Combustion Unit (nautical equipment installed on some LNG ships) |
| GCU➣Guidance & Control Unit |
| GCU➣Gun Control Unit |
| GCU➣Génie Civil Urbain (French: Civil Urban Engineering) |
| GCU➣Girl Crusaders' Union (UK) |
| GCU➣Gateway Channel Unit |
| GCU➣Ground Calibration Unit |