word | | Country name |
| Republic | Trinidad and Tobago | conventional long form: Republic of Trinidad and Tobago conventional short form: Trinidad and Tobago |
| Republic | Tunisia | conventional long form: Tunisian Republic conventional short form: Tunisia local long form: Al Jumhuriyah at Tunisiyah local short form: Tunis |
| Republic | Turkey | conventional long form: Republic of Turkey conventional short form: Turkey local long form: Turkiye Cumhuriyeti local short form: Turkiye |
| Republic | Turkmenistan | conventional long form: none conventional short form: Turkmenistan local long form: none local short form: Turkmenistan former: Turkmen Soviet Socialist Republic |
| Republic | Uganda | conventional long form: Republic of Uganda conventional short form: Uganda |
| Republic | Ukraine | conventional long form: none conventional short form: Ukraine local long form: none local short form: Ukrayina former: Ukrainian National Republic, Ukrainian State, Ukrainian Soviet Socialist Republic |
| Republic | Uruguay | conventional long form: Oriental Republic of Uruguay conventional short form: Uruguay local long form: Republica Oriental del Uruguay local short form: Uruguay former: Banda Oriental, Cisplatine Province |
| Republic | Uzbekistan | conventional long form: Republic of Uzbekistan conventional short form: Uzbekistan local long form: Ozbekiston Respublikasi local short form: Ozbekiston former: Uzbek Soviet Socialist Republic |
| Republic | Vanuatu | conventional long form: Republic of Vanuatu conventional short form: Vanuatu local long form: Ripablik blong Vanuatu local short form: Vanuatu former: New Hebrides |
| Republic | Venezuela | conventional long form: Bolivarian Republic of Venezuela conventional short form: Venezuela local long form: Republica Bolivariana de Venezuela local short form: Venezuela |
| Republic | Vietnam | conventional long form: Socialist Republic of Vietnam conventional short form: Vietnam local long form: Cong Hoa Xa Hoi Chu Nghia Viet Nam local short form: Viet Nam abbreviation: SRV |
| Republic | Yemen | conventional long form: Republic of Yemen conventional short form: Yemen local long form: Al Jumhuriyah al Yamaniyah local short form: Al Yaman former: Yemen Arab Republic [Yemen (Sanaa) or North Yemen] and ... |
| Republic | Zambia | conventional long form: Republic of Zambia conventional short form: Zambia former: Northern Rhodesia |
| Republic | Zimbabwe | conventional long form: Republic of Zimbabwe conventional short form: Zimbabwe former: Southern Rhodesia, Rhodesia |
| Republica | Angola | conventional long form: Republic of Angola conventional short form: Angola local long form: Republica de Angola local short form: Angola former: People's Republic of Angola |
| Republica | Argentina | conventional long form: Argentine Republic conventional short form: Argentina local long form: Republica Argentina local short form: Argentina |
| Republica | Bolivia | conventional long form: Republic of Bolivia conventional short form: Bolivia local long form: Republica de Bolivia local short form: Bolivia |
| Republica | Brazil | conventional long form: Federative Republic of Brazil conventional short form: Brazil local long form: Republica Federativa do Brasil local short form: Brasil |
| Republica | Cape Verde | conventional long form: Republic of Cape Verde conventional short form: Cape Verde local long form: Republica de Cabo Verde local short form: Cabo Verde |
| Republica | Chile | conventional long form: Republic of Chile conventional short form: Chile local long form: Republica de Chile local short form: Chile |
| Republica | Colombia | conventional long form: Republic of Colombia conventional short form: Colombia local long form: Republica de Colombia local short form: Colombia |
| Republica | Costa Rica | conventional long form: Republic of Costa Rica conventional short form: Costa Rica local long form: Republica de Costa Rica local short form: Costa Rica |
| Republica | Cuba | conventional long form: Republic of Cuba conventional short form: Cuba local long form: Republica de Cuba local short form: Cuba |
| Republica | Dominican Republic | conventional long form: Dominican Republic conventional short form: The Dominican local long form: Republica Dominicana local short form: La Dominicana |