Aaron Dan Peskin (born June 17, 1964) is an American elected official in San Francisco, California. He serves as a member of the San Francisco Board of Supervisors representing Supervisorial District 3, and is currently Dean of the Board. He was elected in 2015, having previously served two terms in 2001–2009.District 3 includes the neighborhoods of North Beach, Chinatown, Telegraph Hill, North Waterfront, Financial District, Nob Hill, Union Square, Maiden Lane, Polk Gulch and part of Russian Hill.