William Cowan may refer to:
- William Cowan (footballer born 1900) (1900–1979), English footballer
- William Cowan (fur trader) (1818–1902), of the Hudson's Bay Company
- William Cowan (politician) (1825–?), reeve of North Gower Township, Ontario
- William Henry Cowan, Scottish politician
- Bill Cowan (born 1943), security expert
- Billy Cowan (born 1938), retired baseball player
- Billy Cowan (footballer) (1896–?), Scottish footballer
Famous quotes containing the word william:
“Here lies the body of William Jones
Who all his life collected bones,
Till Death, that grim and boney spectre,
That universal bone collector,
Boned old Jones, so neat and tidy,
And here he lies, all bona fide.”
—Anonymous. “Epitaph on William Jones,” from Eleanor Broughton’s Varia (1925)