Bynoe is a surname. Notable people with the surname include:
Benjamin Bynoe (1804–1865), naval surgeon on HMS Beagle with Charles Darwin Hilda Bynoe (1921–2013), Governor of Grenada Peter Bynoe (born 1951), American lawyer and businessman Philip Bynoe, American musician Robin Bynoe (born 1941), West Indian cricketer from Barbados Bynoe (born 1984), American rapper from Far Rockaway, New York
See also Acacia bynoeana, known colloquially as Bynoe's wattle, a species of Acacia native to eastern Australia Heteronotia binoei, commonly known as Bynoe's gecko, a species of lizard endemic to Australia Bynoe, Northern Territory, a locality