Bulldog Flat is a campsite located within the Big River State Forest in Victoria, approximately 180 km north-east of Melbourne and south-east of Eildon.

It is one of several riverside camping areas scattered along the forested valley, set among dense bushland near the heritage-classified Big River.

The surrounding state forest offers a range of recreational activities including bushwalking, fishing, mountain biking, trail bike riding, and recreational driving.

Like other sites in the Lower Big River area, Bulldog Flat has minimal facilities and may not be suitable for caravans. The forest is managed primarily for recreation and water supply purposes.