Arthur John Leonard Williams (17 December 1888 – 30 September 1968) was an Australian politician and a member of the New South Wales Legislative Assembly from 1940 until 1956.
Williams was born in Paddington, New South Wales and was the son of a hotel broker.
Williams was elected to the parliament as the Labor member for Ryde at the 1940 by-election caused by the resignation of the United Australia Party member, Eric Spooner who successfully contested the seat of Robertson at the 1940 federal election.
At the 1941 election, following an unfavourable redistribution Williams chose to contest the safer seat of Georges River.
This article about an Australian Labor Party member of the Parliament of New South Wales is a stub.