Jacquinot Bay is a bay in East New Britain Province, south-eastern New Britain, Papua New Guinea, at . It is near the mountain where twenty-eight people died in a plane crash  in November, 1945. To its west is the Gasmata Bay and the Wide Bay and Rabaul Bay are situated to the north-east.
Before the Second World War, a palm tree plantation was started here, known as Palmalmal Plantation (Pal Mal Mal). The area also had a Catholic Mission, headed by Father Edward Charles "Ted" Harris.
In April 1942, 156 Australian soldiers and civilians gathered at Pal Mal Mal after fleeing Rabaul. They were rescued by MV Laurabada, which then transported them to Port Moresby. Later, the port was taken over by the Japanese, and remained in their hands until the area was liberated on 4 November 1944. The Australian Army constructed Jacquinot Bay Airfield in 1944-45.
- "Jacquinot Bay". Pacific Wrecks Incorporated. Retrieved 14 February 2013.
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