William Speer (1818 – 20 September 1900) was an Irish-born Australian politician.
Speer was born in County Tyrone[1] and migrated to Australia in 1841.
Elected an alderman of the Sydney Municipal Council in 1858, he served as mayor in 1864.
[2] In 1869 he was elected to the New South Wales Legislative Assembly for West Sydney, but he did not re-contest in 1872.
Speer died at Glebe Point in 1900.