word | | Country name |
| form | Guyana | conventional long form: Cooperative Republic of Guyana conventional short form: Guyana former: British Guiana |
| form | Haiti | conventional long form: Republic of Haiti conventional short form: Haiti local long form: Republique d'Haiti/Repiblik d' Ayiti local short form: Haiti/Ayiti |
| form | Heard Island and McDonald Islands | conventional long form: Territory of Heard Island and McDonald Islands conventional short form: Heard Island and McDonald Islands abbreviation: HIMI |
| form | Holy See (Vatican City) | conventional long form: The Holy See (State of the Vatican City) conventional short form: Holy See (Vatican City) local long form: Santa Sede (Stato della Citta del Vaticano) local short form: Santa ... |
| form | Honduras | conventional long form: Republic of Honduras conventional short form: Honduras local long form: Republica de Honduras local short form: Honduras |
| form | Hong Kong | conventional long form: Hong Kong Special Administrative Region conventional short form: Hong Kong local long form: Xianggang Tebie Xingzhengqu local short form: Xianggang abbreviation: HK |
| form | Hungary | conventional long form: Republic of Hungary conventional short form: Hungary local long form: Magyar Koztarsasag local short form: Magyarorszag |
| form | Iceland | conventional long form: Republic of Iceland conventional short form: Iceland local long form: Lydveldid Island local short form: Island |
| form | India | conventional long form: Republic of India conventional short form: India local long form: Republic of India/Bharatiya Ganarajya local short form: India/Bharat |