SS Iron Crown was an Australian cargo steamship that was built in 1922 for the Commonwealth Line as Euroa, named after the town of Euroa in the state of Victoria.

[2] In December 1923 BHP acquired her, renamed her Iron Crown,[3] and registered her in Sydney.

[4] On 4 June 1942 Iron Crown, was en route from Whyalla in South Australia to Newcastle, New South Wales when Japanese submarine I-27 sank her by torpedo 71 km (44 mi) south-southwest of Gabo Island.

[5] George Fisher, the last survivor, was aged 18 when the ship sank, and died in 2012.

[6] In April 2019 it was announced that the wreck of Iron Crown had been located by marine archaeologists aboard CSIRO research vessel RV Investigator at a depth of 700 metres (2,300 ft), about 100 kilometres (54 nmi) off the coast of Victoria.