Dartnell is an Irish surname. Notable people with the surname include:
John Dartnell (1838–1913), Commandant of the Natal Mounted Police Jorge Chavez Dartnell (1887–1910), Peruvian aviator Julie Dartnell (born 1963), Academy Award winning makeup artist Lewis Dartnell (born 1980), British author, presenter and professor of astrobiology Pedro Dartnell (1873–1944), Chilean military officer and member of the Government Junta of Chile in 1925 Stephen Dartnell (1932–1989), British actor who appeared in several television programmes Wilbur Dartnell VC (1885–1915), Australian recipient of the Victoria Cross
See also Darnell