| John Charles Watt | |
| Birth Date: | 31 January 1936 |
| Birth Place: | England |
| Death Place: | Auckland, New Zealand |
| Nationality: | New Zealander |
| Field: | Entomology |
| Alma Mater: | University of Auckland, Oxford University |
| Awards: | New Zealand National Research Fellowship |
John Charles Watt (31 January 1936 – 16 April 2006) was a New Zealand entomologist who made significant contributions to the study of New Zealand darkling beetles. Watt was born in England and emigrated to New Zealand while a child. He was educated at the University of Auckland where he obtained an master's degree with honours in zoology. He then travelled to the University of Oxford where he obtain a doctorate.
He was a participant in the 1970 Three Kings Islands expedition.[1] [2]