Matthew Edward Gonzalez (born June 4, 1965) is an American politician, lawyer, and activist. He served on the San Francisco Board of Supervisors from 2001 and 2005 and was president of the Board. In 2003, Gonzalez, running as a member of the Green Party, lost a race for mayor of San Francisco to Democrat Gavin Newsom. In the 2008 presidential election, Gonzalez ran for vice president as the running mate of candidate Ralph Nader. As of 2020, he works as the Chief Attorney at the San Francisco Public Defender's Office.