The Waikato District Health Board was a district health board that provided healthcare to the Waikato region of New Zealand.

District health boards (DHBs) in New Zealand were organisations established by the New Zealand Public Health and Disability Act 2000 under the Fifth Labour Government, responsible for ensuring the provision of health and disability services to populations within a defined geographical area. They existed from 1 January 2001, when the act came into force, to 30 June 2022. Initially there were 21 DHBs, and this was reduced to 20 organisations in 2010: fifteen in the North Island and five in the South Island. DHBs received public funding from the Ministry of Health on behalf of the Crown, based on a formula that took into account the total number, gender, age, socio-economic status and ethnic mix of their population. DHBs were governed by boards, which were partially elected and partially appointed by the minister of Health.