Maruniichax̂ Anii is a lake located in Aleutians West County, Alaska. It appears on the Pribilof Islands D-4 SW USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 6.56 feet (2.00 m) above sea level. The nearest populated place is Marunich (historical), approximately 0.3 miles to the ESE.