The Vrbas Banovina or Vrbas Banate, was a province (banovina) of the Kingdom of Yugoslavia between 1929 and 1941. It was named after the Vrbas River and consisted mostly of territory in western Bosnia with its capital at Banja Luka. Dvor district of present-day Croatia was also part of the Vrbas Banovina.

The Vrbas is a major river with a length of 250 kilometres (160 mi), in western Bosnia and Herzegovina. It is a right tributary of the Sava river. The city of Banja Luka is located on the river banks.