William Johnston Allen

William Johnston Allen (1835 – 12 June 1915) was an Irish-born Australian politician. later a member of the New South Wales Legislative Assembly, as the member for Williams from 1860 until 1864. His father arrived in Sydney in 1841, and his mother brought William and his sister Eliza Allen, in 1844. 1882, and 1887 as a member of the Protectionist Party. His brother Alfred also stood for Paddington in 1887 but for the Free Trade Party and was elected, second of three Free Trade members.

In 1888 William was narrowly elected in a by-election for Paddington in 1888, in which three Free Trade members stood for the single vacancy, splitting the vote. thereby sitting on the opposite side of the Legislative Assembly to Alfred. Alfred was re-elected in 1891 and William again campaigned unsuccessfully against him.

In 1895 the brothers both stood for the single member district of Waverley, however neither were elected.

Death Allen died in Waverley on .