Fort Sill National Cemetery is a U. S. National Cemetery located in the city of Elgin in Comanche County, Oklahoma. Administered by the U. S. Department of Veterans Affairs, it encompasses 391.3 acres, and as of 2023 had more than 10,000 interments. A Veteran’s spouse, widow or widower, minor dependent children, and under certain conditions, unmarried adult children with disabilities may also be eligible for burial.