197th

197th may refer to:


 * 197th (Lancashire Fusiliers) Brigade, formation of the British Army during the First World War
 * 197th Air Refueling Squadron, unit of the Arizona Air National Guard 161st Air Refueling Wing
 * 197th Battalion (Vikings of Canada), CEF, unit in the Canadian Expeditionary Force during the First World War
 * 197th Division (People's Republic of China), military formation of the Chinese People's Volunteer Army
 * 197th Field Artillery Regiment, regiment in the New Hampshire Army National Guard
 * 197th Fires Brigade ("Concord Volunteers"), field artillery brigade of the New Hampshire Army National Guard
 * 197th Infantry Brigade (United States) ("Sledgehammer"), Infantry brigade of the United States Army
 * 197th Infantry Division (Wehrmacht), German division in World War II
 * 197th Ohio Infantry (or 197th OVI), infantry regiment in the Union Army during the American Civil War
 * 197th Street (Manhattan)
 * Pennsylvania's 197th Representative District
 * Ruby Junction/E 197th Avenue, MAX light rail station in Gresham, Oregon