GB may stand for: In geography Gabon (FIPS 10-4 and NATO (obsolete) country code: GB), a country in Central Africa Gambia (ICAO airport designator prefix and WMO country code: GB), a country in West Africa Great Britain, an island in Europe Note that the ISO 3166 country code GB stands for the United Kingdom of Great Britain and Northern Ireland and not the island of Great Britain. Guinea Bissau (casual abbreviation G.B.), a country in West Africa In politics Gordon Brown, the British Pri… (More on Gb)