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.