Birdsong is an English surname. Notable people with the surname include:
Bob Birdsong (born 1948), American bodybuilder
Carl Birdsong (born 1959), American football player
Cindy Birdsong (born 1939), American singer
Edwin Birdsong (born 1950), American organist
Gary Birdsong, American fundamentalist preacher
Keith Birdsong, Native American illustrator
Larry Birdsong (1934–1990), American R&B singer
Mary Birdsong (born 1968), American actress
Otis Birdsong (born 1955), American basketball player