Aratika is an atoll in the Tuamotu group in French Polynesia. The nearest land is Kauehi Atoll, located 35 km to the south east. Aratika has an unusual butterfly shape. Its length is 20.8 km² and its maximum width 10.7 km². It has a land area of approximately 8.3 km². The lagoon is wide and deep, and can be entered by two navigable passes.