Waikato Regional Council
The Waikato Regional Council is the regional local government authority that administers the Waikato Region of New Zealand's North Island. It was formerly known as Environment Waikato but this name is no longer used.
The current chairperson is Warren Maher, who was elected on 29 October 2025 following the 2025 local election. Deputy Mich'eal Downard was also elected then.