Citizens Republic Bancorp (primary operating name Citizens Bank) was an American bank headquartered in Flint, Michigan that merged with FirstMerit Bank in 2013. Citizens Republic Bancorp operates in the states of Michigan, Ohio, Indiana, and Wisconsin under the FirstMerit Bank name. On September 13, 2012, it completed a merger agreement with FirstMerit Bank of Akron, Ohio. As of April 13, 2013, it became a subsidiary of the FirstMerit Corporation. The merger finalized on June 13, 2013.