Ochiltree County (/ˈɔːkəlˌtri/ OCK-əl-tree) is a county located in the U.S. state of Texas. As of the 2010 census, its population was 10,223. The county seat is Perryton. The county was organized in 1876, and is named for William Beck Ochiltree, who was the Attorney General of the Republic of Texas.