Georgia (a transcontinental country in the Caucasus region of Europe and Asia, on the coast of the Black Sea); Georgia (a state in the Southern United States)
Gibraltar (a peninsula, city, and overseas territory of the United Kingdom, at the southern end of Iberia); Gibraltar, Strait of Gibraltar (a strait connecting the Mediterranean to the Atlantic between Gibraltar and Morocco; in full, Strait of Gibraltar)
Geneva (the capital city of Geneva canton, Switzerland); Geneva (a canton of Switzerland); a female given name, equivalent to English Jennifer or Guinevere; Queen Guinevere
Gironde (the largest department in the Nouvelle-Aquitaine region, France); Gironde (an estuary in the Nouvelle-Aquitaine region, France, formed by the merger of the rivers Garonne and Dordogne; in full, the Gironde estuary)