William Benjamin Walker (1820 – 9 January 1889) was a politician, merchant, pastoralist and yachtsman from New South Wales, Australia.
[1] Walker was originally a pastoralist, operating a series of stations in the Bega region, based out of the Kamarooka Estate.
[2][3] He was later a merchant in Sydney, operating the firm of William Walker & Co.[4] He built and lived in the Redleaf mansion at Double Bay, which he named after his parents' house in England.
[5][6] The property survives, and now serves as the council chambers for the Municipality of Woollahra.
[9] He was involved in the establishment of the Royal Sydney Yacht Squadron in 1863, and served as its Commodore until resigning in 1867; he was reportedly departing permanently for England.