Mosselbukta is a bay in Ny-Friesland at Spitsbergen, Svalbard. It has a length of about five kilometers, and is located at the mouth of Wijdefjorden, east of the peninsula Mosselhalvøya.
Coordinates: 79°53′35″N 15°53′26″E / 79.8930°N 15.8905°E / 79.8930; 15.8905