Macquarie Rivulet is a river in New South Wales which is 23 kilometres long. It rises near Robertson, New South Wales and drains the eastern edge of the Southern Highlands plateau and part of the Illawarra escarpment. It flows through Albion Park Rail, then goes into Lake Illawarra and indirectly into the Pacific Ocean. The towns of Tullimbar and Albion Park Rail, New South Wales are near the river.