HMAS "Lonsdale" is a former Royal Australian Navy (RAN) training base that was located at Beach Street, Port Melbourne , Victoria, Australia. Originally named "Cerberus III", the Naval Reserve Base was commissioned as HMAS "Lonsdale" on 1 August 1940 during the Second World War.
The Royal Australian Navy's initials spell the past tense of a word that means to move at a pace faster than a walk.