Germany:
Unity Day, 3 October (1990)
Ghana:
Independence Day, 6 March (1957)
Gibraltar:
Commonwealth Day, second Monday of March
Greece:
Independence Day, 25 March (1821)
Greenland:
June 21 (longest day)
Grenada:
Independence Day, 7 February (1974)
Guadeloupe:
Bastille Day, 14 July (1789)
Guam:
Discovery Day, first Monday in March (1521)
Guatemala:
Independence Day, 15 September (1821)
Guernsey:
Liberation Day, 9 May (1945)