Aleutian Region School District (ARSD; REAA #8) is a school district headquartered in Anchorage, Alaska. It serves the Aleutian Islands west of Unalaska, including Adak, Atka, and Nikolski. ARSD is the school district in the United States that is both the farthest east and the farthest west. Several uninhabited islands, including Attu and Shemya, are within the district's physical boundaries.