Takapoto, Tua-poto or Oura, is an atoll in the Tuamotu group in French Polynesia. It has a length of 20 kilometres (12 miles) and a width of 6.7 kilometres (4.2 miles).
The nearest land is Takaroa Atoll, located 10 kilometres (6 miles) to the northeast.
Takapoto's lagoon has a high salinity and a strong phytoplankton biomass.