| Gangway - International term referring to the "aisle". |
| GATT - General Agreement on Tariffs and Trade. A multilateral treaty intended to reduce trade barriers between the signatory countries and to promote trade through tariff concessions. |
| General Contractor - Show management appointed company providing services to a trade show and/or its exhibitors. Also called Official Contractor. Compare with Exhibitor Appointed Contractor. |
| Graphic - A photo, copy panel, or artwork applied to an exhibit. |
| Grid System - A network of structural members, electrical conduits, and other support systems on a pattern of centers. |