Coolongolook River, a watercourse of the Mid-Coast Council system, is located in the Mid North Coast district of New South Wales, Australia.

Coolongolook River rises on the northern slopes below Mount Chapman within the Koolonock Range, near Wootton, and flows generally north and north northeast, joined by the Wallamba and Wallingat rivers, before reaching its confluence with Wallis Lake; descending 176 metres (577 ft) over its 47 kilometres (29 mi) course.

• Rivers of New South Wales
• List of rivers of New South Wales (A–K)
• List of rivers of Australia

• "Karuah River and Great Lakes catchments" (map). Office of Environment and Heritage. Government of New South Wales.

32°11′S 152°21′E / 32.183°S 152.350°E / -32.183; 152.350