Guatemala
noun: Guatemalan(s)
adjective: Guatemalan
Guernsey
noun: Channel Islander(s)
adjective: Channel Islander
Guinea
noun: Guinean(s)
adjective: Guinean
Guinea-Bissau
noun: Guinean(s)
adjective: Guinean
Guyana
noun: Guyanese (singular and plural)
adjective: Guyanese
Haiti
noun: Haitian(s)
adjective: Haitian
Holy See (Vatican City)
noun: none
adjective: none
Honduras
noun: Honduran(s)
adjective: Honduran
Hong Kong
noun: Chinese/Hong Konger
adjective: Chinese/Hong Kong
Hungary
noun: Hungarian(s)
adjective: Hungarian