Oppland County Municipality (Norwegian: Oppland fylkeskommune) was the regional governing administration of the old Oppland county in Norway. The county municipality was established in its most recent form on 1 January 1976 when the law was changed to allow elected county councils in Norway. The county municipality was dissolved on 1 January 2020, when Oppland was merged with the neighboring Hedmark county, creating the new Innlandet county which is led by the Innlandet County Municipality. The administrative seat is located in Lillehammer and the county mayor was Even Aleksander Hagen.
The Oppland county council (Norwegian: Fylkestinget) was made up of 37 representatives that were elected every four years. The council essentially acted as a Parliament or legislative body for the county and it met several times each year. The council was divided into standing committees and an executive board (fylkesutvalg) which met considerably more often. Both the council and executive board were led by the County Mayor (fylkesordfører) who held the executive powers of the county. The final County Mayor was Even Aleksander Hagen.