| Honorific-Prefix: | His Excellency Sir |
| Sydney Gun-Munro | |
| Office: | 1st Governor-General of Saint Vincent and the Grenadines |
| Term Start: | 27 October 1979 |
| Term End: | 28 February 1985 |
| Predecessor: | Office Established Himself as Governor |
| Successor: | Joseph Lambert Eustace |
| Office1: | Governor of Saint Vincent and the Grenadines |
| Term Start1: | 1976 |
| Term End1: | 1979 |
| Monarch1: | Elizabeth II |
| Predecessor1: | Rupert Godfrey John |
| Successor1: | Office Abolished Himself as Governor-General |
| Birth Date: | 29 November 1916 |
| Birth Place: | Grenada |
| Death Place: | Bequia |
| Spouse: | Joan Gun-Munro († 2009) |
| Alma Mater: | King's College London |
Sir Sydney Douglas Gun-Munro (29 November 1916 – 1 March 2007) was the first Governor-General of Saint Vincent and the Grenadines from 1979 to 1985. He was educated at Grenada Boys' Secondary School where he won a scholarship, and in 1937 travelled to King's College London where he studied medicine, graduating in 1942.