The mayor of Hamilton is the head of the municipal government of Hamilton, New Zealand, and presides over the Hamilton City Council.

Hamilton is an inland city in the North Island of New Zealand. Located on the banks of the Waikato River, it is the seat and most populous city of the Waikato region. With a territorial population of 185,300, it is the country's fourth most-populous city. Encompassing a land area of about 110 km2 (42 sq mi), Hamilton is part of the wider Hamilton Urban Area, which also encompasses the nearby towns of Ngāruawāhia, Te Awamutu and Cambridge. In 2020, Hamilton was awarded the title of most beautiful large city in New Zealand.