Vicki Susan Buck (born 16 July 1955) is a New Zealand politician. She was Mayor of Christchurch for nine years from 1989 to 1998. She retired after three terms, having been very popular. She made a political comeback, standing in the 2013 local elections in the Riccarton-Wigram ward as councillor for Christchurch City Council, being returned with the highest number of votes across all city wards. She subsequently accepted the role of deputy mayor.