Evans Island is an island in the Prince William Sound of southern Alaska. Although Evans Island had been inhabited up to the time of the Russian exploration of Alaska, the island had no modern-day inhabitants until 1984, when a group of residents and former residents of the Alutiq village of Chenega, Alaska decided to build the village of Chenega Bay on Crab Bay on Evans Island. Old Chenega had been destroyed and 1/3 of its residents had been killed by the tsunami from the 1964 Alaska Earthquake.

Evans Island and the ocean around it was polluted by the 1989 Exxon Valdez oil spill.

Evans Island was called Hoodoo Island before 1912. The name frightened some sailors. The United States Coast and Geodetic Survey renamed the island in honor of United States Navy Admiral Robley Evans (1846-1912), who had been a maritime policeman in the area early in his career.