Skiatook is a city in Osage and Tulsa counties in the U.S. state of Oklahoma located in the northeastern part of the state, approximately 20 miles north and west of Tulsa. Due to its location on the border between Osage County and Tulsa County, Skiatook has been referred to as "the Gateway to the Osage." The town includes the state highway junction of Oklahoma State Highway 11 and Oklahoma State Highway 20.