HMAS Waterhen (naval base)

HMAS Waterhen
Part of Fleet Base East
Waverton, Sydney, New South Wales in Australia
HMAS Waterhen
HMAS Waterhen Location in Greater Sydney
Coordinates	33°50′28″S 151°11′40″E / 33.84111°S 151.19444°E / -33.84111; 151.19444
Type	Naval base
Site information
Owner	Department of Defence
Operator	Royal Australian Navy (1943–1967);  Royal Australian Navy (1967 – present)
Site history
In use	1943 – present
Garrison information
Current commander	Commander Fiona Eggins, RAN
Past commanders	Commander David Jones, RAN

HMAS Waterhen is a Royal Australian Navy (RAN) base located in Waverton on Sydney's lower north shore, within Sydney Harbour, in New South Wales, Australia. Constructed on the site of a quarry used to expand Garden Island in the 1930s, the location was used during World War II as a boom net maintenance and storage area. In 1962, the area was commissioned as a base of the RAN, and became home to the RAN's mine warfare forces. Waterhen was the first small-ship base established by the RAN, and from 1969 to 1979 was also responsible for the RAN's patrol boat forces.