Dunsby (surname)
Dunsby is a surname, mostly used in English-speaking countries. Notable people with the surname include:
- Adam Dunsby (born 1967), American businessman, financier, and politician
 - Brian Dunsby (1940–2025), British entrepreneur
 - Jakob Dunsby (born 2000), Norwegian footballer
 - Jonathan Dunsby (born 1953), British classical pianist, musicologist, author and translator
 - Peter Dunsby (born 1966), South African cosmologist