Sir Luke Samuel Leake (1828 – May 1886), MLC, was sometime Speaker of Legislative Council, Western Australia.
Leake was the youngest son of Luke Leake, of Stoke Newington, Middlesex. He moved to Western Australia in 1833 (then known as the Swan River Colony), where he became a member of the Legislative Council, and was the first Speaker of that body, holding the position from 26 June 1872 until his death in May 1886. In 1855, he married Louisa, daughter of the late Rev. Thomas Henry Walpole, vicar of Winslow, Buckinghamshire, who married secondly, in 1887, A. B. Waylen, MD, colonial surgeon, Western Australia. He was knighted by patent in 1876 and died in 1886.[1]