| Honorific-Prefix: | Dr |
| John Cairney | |
| Term Start: | February 1950 |
| Term End: | October 1959 |
| Predecessor: | Thomas Ritchie |
| Birth Date: | 8 October 1898 |
| Birth Place: | Greymouth, New Zealand |
| Death Date: | 5 August 1966 |
| Death Place: | Wellington, New Zealand |
| Children: | 3 |
John Cairney (8 October 1898 - 5 August 1966) was the New Zealand Director-General of Health and Inspector-General of Hospitals, an anatomist, a medical superintendent and a writer and painter. He was born in Greymouth, New Zealand, on 8 October 1898.
In 1953, Cairney was awarded the Queen Elizabeth II Coronation Medal.[1] In the 1960 New Year Honours, he was appointed a Companion of the Order of St Michael and St George.