The West Ukrainian People's Republic (WUPR) or West Ukrainian National Republic (WUNR), known for part of its existence as the Western Oblast of the Ukrainian People's Republic, was a short-lived polity that controlled most of Eastern Galicia from November 1918 to July 1919. It included the cities of Lviv, Ternopil, Kolomyia, Drohobych, Boryslav, Stanislaviv (now Ivano-Frankivsk) and right-bank Przemyśl, and claimed parts of Bukovina and Carpathian Ruthenia. Politically, the Ukrainian National Democratic Party (the precursor of the interwar Ukrainian National Democratic Alliance) dominated the legislative assembly, guided by varying degrees of Greek Catholic, liberal and socialist ideology. Other parties represented included the Ukrainian Radical Party and the Christian Social Party.

The WUPR emerged as a breakaway state amid the dissolution of Austria-Hungary, and in January 1919 nominally united with the Ukrainian People's Republic (UPR) as its autonomous Western Oblast. Poland had also claimed this territory, and by July occupied most of it and forced the West Ukrainian government into exile. When the UPR decided late the same year that it would trade the territory for an alliance with Poland against Soviet Russia, the exiled West Ukrainian government broke with the UPR. The exiled government continued its claim until it dissolved in 1923.

The coat of arms of the WUPR was azure, a golden lion rampant. The colours of the flag were blue and yellow.