Big Horn or Bighorn may refer to:

Bighorn sheep, a species native to North America

Places Canada Bighorn, British Columbia Bighorn Dam, Alberta Bighorn River (Alberta) Bighorn Wildland Provincial Park, a proposed park in Alberta Big Horn 144A, an Indian reserve in Alberta Municipal District of Bighorn No. 8, a municipal district in Alberta

United States Big Horn, Wyoming Big Horn County, Montana Big Horn County, Wyoming Big Horn (Washington), a peak in the state of Washington Bighorn Mountain, in Nebraska Bighorn Mountains, in Wyoming and Montana Bighorn Mountains (California), in San Bernardino County Bighorn Basin, in Wyoming and Montana Bighorn Canyon National Recreation Area, in Wyoming and Montana Bighorn National Forest, in Wyoming Bighorn Lake, in Wyoming and Montana Big Horn Peak, in Montana Bighorn River, in Wyoming and Montana

Other uses USS Big Horn (AO-45), a US Navy tanker 1942–1946 USS Big Horn (T-AO-198), a US Navy fleet replenishment oiler since 1992 Big Horn, Manchester, a public sculpture in Manchester, England Big Horn Academy Building, a school in Cowley, Wyoming, US Big Horn Hotel, a demolished historic building in Arminto, Wyoming, US The Big Horn, a 1979 album by Houston Person Bighorn Airways, an American charter company Bighorn Fire, a 2020 wildfire near Tucson, Arizona, US Isuzu Bighorn, or Isuzu Trooper, an SUV

See also Little Bighorn (disambiguation)