Glennallen ( /ɡlɛnælən/) (Ciisik’e Na’ in Ahtna) is a census-designated place (CDP) in the Valdez-Cordova Census Area in the Unorganized Borough of the U.S. state of Alaska. As of the 2000 census, the population of the CDP was 554.
Glennallen is located at 62°06′33″N 145°32′47″W / 62.10917°N 145.54639°W / 62.10917; -145.54639 (62.109170, -145.54639; Sec. 23, T004N, R002W, Copper River Meridian), in the Chitina Recording District and Game Management Unit 13.
It lies along the Glenn Highway at its junction with the Richardson Highway, 189 road miles (304 km) east of Anchorage. It is just outside the western boundary of Wrangell-St. Elias National Park and Preserve.