John William Croft (20 January 1871 – c. 1913) was an Australian politician.

Born in Newcastle, New South Wales, he was educated in state schools before becoming an apprentice bootmaker.

Moving to Western Australia in the 1890s, he was Secretary of the Coastal Trades and Labour Council.

Members of his family have variously recorded that he disappeared after heading off on a mysterious "mission" to Uruguay in 1913, but that he attended his mother's funeral in 1925 and was not listed as deceased on his father's 1929 death certificate.

This article about an Australian Labor Party member of the Senate is a stub.