No. 18 (Netherlands East Indies) Squadron was a joint Dutch and Australian bomber squadron of World War II. Formed in April 1942, the squadron was staffed by a mixture of Dutch and Australian personnel and placed under Royal Australian Air Force operational command. Initially it undertook anti-submarine patrols on the east coast of Australia, before moving to northern Australia and taking part in operations against the Japanese in the islands of the Netherlands East Indies (NEI). At the conclusion of hostilities, the squadron came under Dutch control and Australian personnel were transferred out. The squadron then undertook operations during the Indonesian National Revolution, before eventually being disbanded in July 1950 after being transferred to Indonesia.