Charles Edmund Nash (May 23, 1844 – June 21, 1913) was an American politician who served a single two-year term as Republican in the United States House of Representatives from Louisiana.

Nash would remain the state's only black U.S. Representative for more than a century — until 1991, when William J. Jefferson's tenure in the 2nd Louisiana District began.

During the American Civil War, he enlisted in 1863 as a private in the Eighty-second Regiment, United States Volunteers, and was promoted to the rank of sergeant major.

Nash was severely wounded near the end of the war, at the Battle of Fort Blakeley in Alabama, April 1865; he lost part of his leg.

He served briefly as postmaster at Washington in St. Landry Parish, Louisiana, during the Chester A. Arthur administration, only from February 15 to May 1, 1882.