word | | Country name |
| local | Tuvalu | conventional long form: none conventional short form: Tuvalu local long form: none local short form: Tuvalu former: Ellice Islands note: "Tuvalu" means "group of eight," referring to the country's eight traditionally ... |
| local | 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 |
| local | United Arab Emirates | conventional long form: United Arab Emirates conventional short form: none local long form: Al Imarat al Arabiyah al Muttahidah local short form: none former: Trucial Oman, Trucial States abbreviation: UAE |
| local | 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 |
| local | 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 |
| local | Vanuatu | conventional long form: Republic of Vanuatu conventional short form: Vanuatu local long form: Ripablik blong Vanuatu local short form: Vanuatu former: New Hebrides |
| local | Venezuela | conventional long form: Bolivarian Republic of Venezuela conventional short form: Venezuela local long form: Republica Bolivariana de Venezuela local short form: Venezuela |
| local | 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 |
| local | Wallis and Futuna | conventional long form: Territory of the Wallis and Futuna Islands conventional short form: Wallis and Futuna local long form: Territoire des Iles Wallis et Futuna local short form: Wallis et Futuna |
| local | 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 ... |
| Lorosa | Timor-Leste | ... Democratic Republic of Timor-Leste conventional short form: Timor-Leste local long form: Republika Demokratika Timor Lorosa'e [Tetum]; Republica Democratica de Timor-Leste [Portuguese] local short form: Timor Lorosa'e [Tetum ... |
| Lubnan | Lebanon | conventional long form: Lebanese Republic conventional short form: Lebanon local long form: Al Jumhuriyah al Lubnaniyah local short form: Lubnan former: Greater Lebanon |
| Lubnaniyah | Lebanon | conventional long form: Lebanese Republic conventional short form: Lebanon local long form: Al Jumhuriyah al Lubnaniyah local short form: Lubnan former: Greater Lebanon |
| Lucia | Saint Lucia | conventional long form: none conventional short form: Saint Lucia |
| Luxembourg | Luxembourg | conventional long form: Grand Duchy of Luxembourg conventional short form: Luxembourg local long form: Grand Duche de Luxembourg local short form: Luxembourg |
| Lydveldid | Iceland | conventional long form: Republic of Iceland conventional short form: Iceland local long form: Lydveldid Island local short form: Island |
| Macau | Macau | conventional long form: Macau Special Administrative Region conventional short form: Macau local long form: Aomen Tebie Xingzhengqu (Chinese); Regiao Administrativa Especial de Macau (Portuguese) local short form: Aomen (Chinese); Macau (Portuguese) |
| Macedonia | Macedonia | conventional long form: Republic of Macedonia conventional short form: Macedonia local long form: Republika Makedonija local short form: Makedonija note: the provisional designation used by the UN, EU, and NATO is the ... |
| Madagascar | Madagascar | conventional long form: Republic of Madagascar conventional short form: Madagascar local long form: Republique de Madagascar/Repoblikan'i Madagasikara local short form: Madagascar/Madagasikara former: Malagasy Republic |
| Madagasikara | Madagascar | conventional long form: Republic of Madagascar conventional short form: Madagascar local long form: Republique de Madagascar/Repoblikan'i Madagasikara local short form: Madagascar/Madagasikara former: Malagasy Republic |