Williamstown Town Hall is a civic building located in Williamstown, a suburb of Melbourne, Australia. The hall was built in the 1920s in the Greek revival style to the design of prominent local architect Joseph Plottel, and opened officially in 1927. After the City of Williamstown was amalgamated with the City of Altona in 1994 to form the new City of Hobsons Bay, the building continued to be used for council meetings, though not as often as its Altona counterpart.