The Ocean Grove Nature Reserve is a rectangular, 1.43 km2 nature reserve next to the town of Ocean Grove and 25 km south-east of the city of Geelong, on the Bellarine Peninsula, Victoria, Australia. It contains the only significant remnant of native woodland on the Bellarine Peninsula as it was prior to European settlement and the extensive land clearing that ensued. It is surrounded by agricultural land and a housing estate and is managed by Parks Victoria. Records of its birdlife illustrate the changes occurring in an isolated woodland remnant.