Billy Walker, English footballer (d. 1964)
Billy Walker may refer to:

Billy Walker (footballer, born 1897) (1897–1964), English footballer of the 1920s and 1930s, later a football manager

Billy Walker (footballer, born 1879) (1879–?), English footballer

Billy Walker (boxer) (born 1939), English heavyweight boxer of the 1960s

Billy Walker (musician) (1929–2006), American country music singer and guitarist

Billy Walker (Scottish footballer) (1893–after 1925), Scottish footballer of the 1910s and 1920s

Billy Walker (Coronation Street), a fictional character in the British soap opera Coronation Street

Billy Walker (rugby union) (born 1996), English rugby tighthead prop

Billy Joe Walker Jr. (1952–2017), session guitarist and New Age musician