The OÖ Liga (whose official sponsor name is Radio OÖ Liga, and still colloquially known as the Oberösterreich-Liga) is the football division of the state of Upper Austria.

It's Austrian footballs fourth highest league for clubs of the Upper Austrian Football Association (German: Oberösterreichischer Fußballverband, OFV).

With the football associations of Carinthia and Styria, the OFV forms the Regional League Central, a portion of the three-pronged Austrian Regional League.

[2] The OÖ Liga is a league competition, in which 16 football clubs from Upper Austria participate.

The best-placed team at the end of the season is made Upper Austrian Champion and advances to the Regional League Central.