One ship and one shore establishment of Royal Australian Navy (RAN) have been named HMAS Cairns, for the city of Cairns, Queensland.
- , a launched in 1941 and transferred to the Royal Netherlands Navy in 1946
- , the RAN's minor war vessel base located in the city of the same name, which was opened in 1974
Battle honours
Four battle honours have been awarded to HMAS Cairns:
- Pacific 1942–45
- Indian Ocean 1942–45
- Sicily 1943
- Okinawa 1945