The 137th Infantry Regiment (First Kansas) was an infantry regiment of the United States Army. It was part of the Kansas Army National Guard and has served with distinction in the Philippine Insurrection, World War I, and World War II. The last active battalion was the 2nd Battalion, as the 2–137th Combined Arms Battalion, a component of the 635th Regional Support Group. The battalion was redesignated as the 1st Battalion, 635th Armor Regiment in 2020, although the structure of the unit remained unchanged.
