Pokuttia, also known as Pokuttya or Pokutia, (Ukrainian: Покуття; Polish: Pokucie; Romanian: Pocuția) is an historical area of East-Central Europe, situated between the Dniester and Cheremosh rivers and Carpathian Mountains, in the southwestern part of modern Ukraine.

Petru was eager to gain influence in the internal politics of the Kingdom of Poland, supporting the cause of his long-time allies, the Jagiellons of the Grand Duchy of Lithuania.

As in other such famous 'deals' in medieval Europe (e.g. Foix, or the Dauphiné), when the local feudal lord had to swear an oath of allegiance to the king for the specific territory, even when the former was himself an independent ruler of another state.

In 1485, Moldavian prince Stephen the Great, having lost his country's access to the Black Sea the previous year to the Ottomans, was in serious need of alliances, and swore allegiance to Casimir IV Jagiellon, King of Poland for Pokuttia, in what is known as the Colomeea oath.

Known as Mukha Rebellion, this series of battles was supported by Moldavian prince Stephen the Great, and it is one of the earliest known uprisings of Ukrainians against Polish oppression.

In the wake of the World War I and the fall of Austria-Hungary, it became disputed between Poland and the short-lived West Ukrainian People's Republic, which had its seat of government in Stanyslaviv after it failed to hold Lviv.

The expansion of ancient Pokuttian phonetic features in the 14th-16th centuries in western Podolia contributed to the formation of a broader group of Dniester dialects.