Billy Cowan (footballer)
|Full name||William Duncan Cowan|
|Date of birth||9 August 1896|
|Place of birth||Edinburgh, Scotland|
|Date of death||Unknown|
|Playing position||Inside right|
|* Senior club appearances and goals counted for the domestic league only|
William Duncan "Billy" Cowan (9 August 1896 – unknown) was a Scottish professional footballer. An inside right who could also play at inside left, he played in the Football League for Newcastle United, Manchester City, Hartlepool United and Darlington. He also received one cap for Scotland.