Rangiroa (meaning Vast Sky in Tuamotuan) or Te Kokōta ( Hyades in Māori), is the largest atoll in the Tuamotus, and one of the largest in the world (although it is smaller than Kwajalein in the Marshall Islands and Huvadhu in the Maldives). It is part of the Palliser group. The nearest atoll is Tikehau, located only 12 km to the west. It is about 355 km northeast of Tahiti.
Rangiroa houses about 2500 people on almost 80 km2. The chief town is Avatoru, located in the northwestern part of the atoll.
Rangiroa is a commune of French Polynesia in the archipelago of the Tuamotu Islands. The commune includes four islands: Rangiroa, Tikehau, Mataiva and Makatea. The chef-lieu is the atoll of Rangiroa and the chief-town is Avatoru.