GGI may refer to:
Organisations Galileo Galilei Institute for Theoretical Physics, near Florence, Italy General Glass Industries, a defunct American glassmaker Global Governance Institute, a Belgian think tank Guardian Girls International, an international NGO
Other uses Global Governance Initiative, a diplomatic initiative presesented by CCP General Secretary Xi Jinping General Graphics Interface, a former computer graphics project Grinnell Regional Airport (FAA LID code), in Iowa, US Gullah Gullah Island, an American television series