Zachary Hicks was a Royal Navy officer, second-in-command on Lieutenant James Cook's first voyage to the Pacific and the first among Cook's crew to sight mainland Australia. A dependable officer who had risen swiftly through the ranks, Hicks conducted liaison and military duties for Cook, including command of shore parties in Rio de Janeiro and the kidnapping of a Tahitian chieftain in order to force indigenous assistance in the recovery of deserters. Hicks' quick thinking while in temporary command of HMS Endeavour also saved the lives of Cook, Joseph Banks and Daniel Solander when they were attacked by Māori in New Zealand in November 1769.

HMS Endeavour was a British Royal Navy research vessel that Lieutenant James Cook commanded to Tahiti, New Zealand and Australia on his first voyage of discovery from 1768 to 1771.