Tikehau is a coral atoll in the Tuamotu Archipelago. It is located in the Palliser group, the westernmost of the Tuamotus.
The atoll's oval-shaped lagoon is 27 km long and 19 km wide. and is surrounded by an almost continuous coral reef. There is a great density of fish and other marine life in the lagoon.
The islands are covered with coconut palms, and support a population of 407 inhabitants. The main village is called Tuherahera. There are also tourist resorts on Tikehau.