Tuanake or Mata-rua-puna[2] is a small atoll located in the Tuamotu Archipelago in French Polynesia.

Tuanake is located 7.5 kilometres (4.7 miles) west of Hiti, the nearest island, and 545 km east of Tahiti.

[1] The first recorded European to sight Tuanake was Russian explorer Fabian Gottlieb von Bellingshausen on July 15, 1820, who named it "Raevski Island".

[3] In the nineteenth century, Tuanake became a French territory then populated by a few indigenous inhabitants who obey the chief of Katiu just like the Tepoto Sud and Hiti atolls.

[6] In recent years, Tuanake has been exploited by the inhabitants of Katiu for sea cucumber fishing for export to Asia.