William McConnell may refer to:
William McConnell (illustrator) (1833–1867), English illustrator and cartoonist William W. McConnell (1834–1895), American politician from Pennsylvania William J. McConnell (1839–1925), US senator from Idaho William B. McConnell (1849–1931), justice of the Dakota Territorial Supreme Court William McConnell (footballer) (1889–1966), Irish sportsman William McConnell (trade unionist) (died 1928), British trade unionist and political activist
See also Billy McConnell (disambiguation) William McConnel, British Industrialist William McConnell Wilton, Unionist politician from Northern Ireland