Martin Joseph Walsh (born April 10, 1967) is an American politician and trade union official who served as the 53rd mayor of Boston from 2014 to 2021 and as the 29th United States Secretary of Labor from 2021 to 2023. A member of the Democratic Party, Walsh resigned from his position as the US Secretary of Labor in March 2023 in order to accept a position as executive director of the National Hockey League Players' Association (NHLPA). Before his mayoralty, he served as a member of the Massachusetts House of Representatives, representing the 13th Suffolk district from 1997 until 2014.