The Nushagak Peninsula is an uninhabited peninsula in the U.S. state of Alaska. It is situated in the Dillingham Census Area, west of the Alaska Peninsula. The 520,000 acres (210,000 ha) byland measures 35 by 15 miles (56 km × 24 km). It was named for Nushagak Bay in 1910 by the U.S. Coast and Geodetic Survey.