| Acronym | Definition |
|---|
| GCID➣Glenn-Colusa Irrigation District |
| GCID➣Glasgow Centre for International Development (Glasgow, Scotland, UK) |
| GCID➣Global Call Identifier |
| GCID➣GPRS Charging Identifier |
| GCID➣Gulf Coast Investment Developers, Inc. (Biloxi, MS) |
| GCID➣G. Carr Illustration & Design (Denver, CO) |
| GCID➣Gibraltar Co-ordinating Centre for Criminal Intelligence and Drugs |
| GCID➣Greensboro Center for Innovative Development (North Carolina) |