Sir Keith Jacka Holyoake, KG, GCMG, CH, QSO, KStJ (11 February 1904 – 8 December 1983) was a New Zealand politician. The only person to have been both Prime Minister and Governor-General of New Zealand, Holyoake was National Party Prime Minister from 20 September 1957 to 12 December 1957, then again from 12 December 1960 to 7 February 1972. He was appointed as Governor-General in 1977 and served until 1980.
Holyoake is to date the third longest serving New Zealand Prime Minister (just under 12 years), surpassed only by Richard Seddon's 13 years and William Massey's close to 13 years; he was also the first to be born in the 20th century. He was known for his diplomatic style and "plummy" voice. He was also fondly (or mockingly) known as Kiwi Keith, a name given to him in childhood to distinguish him from an Australian child with the same name.
Holyoake was born at Mangamutu, a short distance from Pahiatua, a town in New Zealand's Wairarapa region, the son of Henry Victor Holyoake and Esther Eves. The Holyoakes great-grandparents settled in the district in 1843 (his maternal great-grandparents, William and Sarah Eves settled in Nelson in 1842), and were relatives of 19th century radical George Holyoake. The Holyoakes ran a small general store and consequentially moved around the country often. His family lived for a time in both Hastings and Tauranga, but in 1913, settled in Riwaka, near Motueka.