Manahawkin Bay is a bay in the U.S. state of New Jersey in Ocean County, located between Long Beach Island and Manahawkin, on the mainland. It is a part of the Intracoastal Waterway.
Coordinates: 39°41′09″N 74°10′23″W / 39.685789°N 74.172993°W / 39.685789; -74.172993