David or Dave Ryan may refer to:
Sportspeople Dave Ryan (Australian footballer) (1885–1957), Australian rules footballer Dave Ryan (boxer) (born 1983), British boxer Dave Ryan (rugby union) (born 1986), Irish rugby union player David Ryan (footballer) (born 1957), English soccer player Dave Ryan (sportscaster) (born 1967), American play-by-play announcer Dave Ryan (American football) (1923–1988), American football quarterback
Others David Ryan (Medal of Honor) (1836–1896), Indian Wars Medal of Honor recipient Dave Ryan (politician), mayor of Pickering, Ontario Dave Ryan (motorsport) (born 1954), former McLaren sporting director Dave "Chico" Ryan (1948–1998), musician Dave Ryan (radio), morning host of KDWB-FM, Minneapolis, MN David Ryan, drummer with The Lemonheads