Ledda Bay () is a shallow embayment or bight, long, in the north side of Grant Island, off the coast of Marie Byrd Land, Antarctica. It was discovered and first charted from the (Captain Edwin A. McDonald) on February 4, 1962, and was named for R.J. Ledda, quartermaster aboard the Glacier on the cruise in which the bay was discovered. References Bays of Marie Byrd Land Bights (geography)