Georgia:
18 years of age; universal
Germany:
18 years of age; universal
Ghana:
18 years of age; universal
Gibraltar:
18 years of age; universal, plus other UK subjects who
have been residents six months or more
Greece:
18 years of age; universal and compulsory
Greenland:
18 years of age; universal
Grenada:
18 years of age; universal
Guadeloupe:
18 years of age; universal
Guam:
18 years of age; universal; US citizens, but do not vote in US
presidential elections
Guatemala:
18 years of age; universal (active duty members of the
armed forces may not vote)