Rebecca Otto is an American politician who served as State Auditor of Minnesota from 2007 to 2019. Affiliated with the Minnesota Democratic-Farmer-Labor Party (DFL), she served in the Minnesota House of Representatives from 2003 to 2005 and on the Forest Lake School Board.

The state auditor of Minnesota is a constitutional officer in the executive branch of the U.S. state of Minnesota. Nineteen individuals have held the office of state auditor since statehood. The incumbent is Julie Blaha, a DFLer.