Leavenworth may refer to:
Geography Leavenworth, Indiana Leavenworth, Minnesota Leavenworth, a neighborhood of Omaha, Nebraska Leavenworth, Washington Leavenworth County, Kansas, a county in northeast Kansas Leavenworth, Kansas, a city in the county which includes the fort and federal prisons within its city limits Roman Catholic Diocese of Leavenworth East Leavenworth, Missouri, an extinct hamlet across the Missouri River from Leavenworth, Kansas
Institutions and structures Fort Leavenworth, a U.S. Army base in Leavenworth, Kansas Fort Leavenworth National Cemetery, a cemetery on the base Midwest Joint Regional Correctional Facility, often referred to as Leavenworth, a military prison built on the grounds of Fort Leavenworth United States Penitentiary, Leavenworth, often referred to as Leavenworth, a civilian medium security prison built in the town of Leavenworth, Kansas United States Disciplinary Barracks, often referred to as Leavenworth, a military maximum security prison built on the grounds of Fort Leavenworth
People Henry Leavenworth, U.S. soldier who established Fort Leavenworth Jesse Henry Leavenworth, U.S. soldier, son of Henry Leavenworth