YU or Yu may refer to:
Yugoslavia (Serbo-Croatian: Jugoslavija/Југославија, Slovene: Jugoslavija, Macedonian: Југославија) was a country in Southeast Europe during most of the 20th century.
Yuri Alekseyevich Gagarin (Russian: Ю́рий Алексе́евич Гага́рин; IPA: [ˈjʉrʲɪj ɐlʲɪˈksʲejɪvʲɪtɕ ɡɐˈɡarʲɪn]; 9 March 1934 – 27 March 1968) was a Russian Soviet pilot and cosmonaut.
Yuna Kim KTM (Hangul: 김연아, Hanja: 金姸兒, IPA: [kim.jʌn.a]; born 5 September 1990), also credited in eastern name order as Kim Yuna, is a South Korean former professional figure skater.
Yunnan is a province of the People's Republic of China, located in the far southwest of the country. It spans approximately 394,000 square kilometres (152,000 sq mi) and has a population of 45.7 million in 2009. The capital of the province is Kunming, formerly also known as Yunnan.
The Yugoslav Wars were a series of ethnically-based wars and insurgencies fought from 1991 to 2001 inside the territory of the former Yugoslavia.
Yuvraj Singh ( pronunciation ) (born 12 December 1981) is an Indian international cricketer. An all-rounder who bats left-handed in the middle order and bowls slow left-arm orthodox, Yuvraj is the son of former Indian fast bowler and Punjabi actor Yograj Singh.
Yulia Volodymyrivna Tymoshenko (Ukrainian: Ю́лія Володи́мирівна Тимоше́нко, pronounced [ˈjulʲijɐ voɫoˈdɪmɪrʲivnɐ tɪmoˈʃɛnko], née Hrihyan, Грігян, born 27 November 1960) is a Ukrainian politician.