Two ships of the Royal Australian Navy have been named HMAS Cessnock, after the town of Cessnock, New South Wales.
- , a Bathurst-class corvette laid down in 1941 and paid off in 1946
- , a Fremantle-class patrol boat laid down in 1981 and in service until 2005
Battle honours
Four battle honours were awarded to ships named HMAS Cessnock:
- Pacific 1942
- New Guinea 1942
- Indian Ocean 1942–45
- Sicily 1943