Two ships of the Royal Australian Navy have been named for the Hawkesbury River in New South Wales, a continuation of the Wollondilly and Nepean Rivers, which flows into Broken Bay.
The first HMAS Hawkesbury (K-363/F-363) was a River class frigate laid down by Morts Dock and Engineering Company at Balmain in New South Wales, launched on 24 July 1943 and commissioned on 5 July 1944. Hawkesbury was decommissioned to reserve in May 1947 but recommissioned in July 1952. HMAS Hawkesbury paid off on 14 February 1955 and was sold on 21 September 1961.
The second HMAS Hawkesbury is a Huon class minehunter.