Charles Coles Diggs Jr. (December 2, 1922 – August 24, 1998) was an American politician from the U.S. state of Michigan who served in the state senate and U.S. House of Representatives. He was the first African American elected to Congress from Michigan. Diggs resigned from the United States House of Representatives and served 14 months of a three-year sentence for mail fraud, although he maintained his innocence.