thumb|A Map of the Marquesas

The Marquesan Nature Reserves are a network of small nature reserves in the Marquesas Islands. The reserves were declared by the government of French Polynesia in 1992, as a first step toward preserving the native flora and fauna of some of the smaller islands of the group.

The reserve system presently consists of four units:

  • Eiao Island Nature Reserve, encompassing Eiao and its surrounding rocks ()
  • Hatutu Nature Reserve, including the island of Hatutu and its surrounding rocks ()
  • Motane Nature Reserve, including the islands of Moho Tani and Terihi, as well as a few surrounding rocks ()
  • Motu One Reserve, covering the coral reef and sandy island network of Motu One ()

In 1996 Lucien Kimitete, the Mayor of Nuku Hiva, proposed that the Marquesas become a UNESCO World Heritage Site. In May 2022 public consultations on their listing began.