Shepard J. Crumpacker Jr. (February 13, 1917 – October 14, 1986) was an American lawyer, jurist, World War II veteran, and politician who served three terms as a U.S. representative from Indiana from 1951 to 1957.

Crumpacker owned and operated a farm and served as delegate to Indiana State Republican conventions from 1958 through 1970.

Crumpacker entered the United States Army Air Corps as a private on September 26, 1941, during World War II, and advanced through the ranks to flight chief in a fighter squadron.

Crumpacker was Relieved from active duty as a first lieutenant on March 1, 1946, and thereafter was a major in the United States Air Force Reserve.

This article incorporates public domain material from the Biographical Directory of the United States Congress