Peter M. Sullivan is a Democratic former member of the New Hampshire House of Representatives and a former member of the Board of Aldermen in the city of Manchester, New Hampshire. He served as a New Hampshire state representative from Hillsborough County, from 2001 until 2006, during which he served on the House Committees on Criminal Justice and Public Safety and State-Federal Relations and Veterans Affairs. From 2008 to 2010, Sullivan served as a member of the Manchester Board of Aldermen from the city's downtown Ward 3. He served in the New Hampshire House again from 2012 through 2014.