HMAS Berrima was a passenger liner which served in the Royal Australian Navy (RAN) during World War I as an armed merchantman and troop transport. Launched in 1913 as the P&O liner SS Berrima, the ship initially carried immigrants from the United Kingdom to Australia via Cape Town. In August 1914, Berrima was requisitioned for military use, refitted and armed, and commissioned into the RAN as an auxiliary cruiser. The ship transported two battalions of the Australian Naval and Military Expeditionary Force to the German New Guinea colonies in September.

Caird & Company was a Scottish shipbuilding and engineering firm based in Greenock. The company was established in 1828 by John Caird when he received an order to re-engine Clyde paddle-tugs.