The 2016 Christchurch mayoral election was part of the New Zealand local elections held on 8 October. The incumbent mayor, former Labour MP and government Minister Lianne Dalziel, who was first elected in the 2013 mayoral election was reelected, winning a commanding 83.9% of formal votes cast in the poll. However New Zealand's local government elections in 2016 were characterized by a nationwide low participation rate which saw only 41.8% of enrolled voters cast a ballot in the election. Christchurch's turnout rate was particularly low with only 38.3% of enrolled voters actually voting, down from 52.2% in 2010.

The 2013 Christchurch mayoral election was part of the New Zealand local elections and was won by former MP Lianne Dalziel. The elections were held on 12 October 2013 for the Mayor of Christchurch plus other local government roles.