Michela Alioto-Pier (born April 29, 1968) is an American politician who served as a member of the San Francisco Board of Supervisors from 2004 to 2011. A Democrat, she represented District 2, encompassing the Marina and Pacific Heights neighborhoods. She previously served as a member of the San Francisco Port Commission. She was appointed to the Board of Supervisors by Gavin Newsom after he was elected mayor, in 2003. Newsom himself was initially appointed to this seat by former mayor Willie Brown.