Hollis is a city in and the county seat of Harmon County, Oklahoma, United States.. The population was 2,060 at the 2010 census.
The town takes its name from George W. Hollis, homesteader, landowner, and co-founder of the town. Hollis is the birthplace of legendary University of Texas football coach Darrell Royal, University of Kansas Head basketball coach Ted Owens, Major League Baseball players Wilcy Moore, Von McDaniel, Lindy McDaniel, University of Oklahoma and Professional Football Player Alton Coppage, musician Glen Hardin, and singer Terry Stafford ("Amarillo by Morning" and "Suspicion").
Hollis is located at 34°41′11″N 99°55′1″W / 34.68639°N 99.91694°W / 34.68639; -99.91694 (34.686374, -99.916889).