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 (8°00′07″S 140°42′11″W / 8.002°S 140.703°W / -8.002; -140.703 (Eiao Island Nature Reserve))
• Hatutu Nature Reserve, including the island of Hatutu and its surrounding rocks (7°55′05″S 140°34′19″W / 7.918°S 140.572°W / -7.918; -140.572 (Hatutu Nature Reserve))
• Motane Nature Reserve, including the islands of Moho Tani and Terihi, as well as a few surrounding rocks (9°59′10″S 138°49′44″W / 9.986°S 138.829°W / -9.986; -138.829 (Motane Nature Reserve))
• Motu One Reserve, covering the coral reef and sandy island network of Motu One (7°52′05″S 140°22′41″W / 7.868°S 140.378°W / -7.868; -140.378 (Motu One Reserve))

In 1996 Lucien Kimitete, the Mayor of Nuku Hiva, proposed that the Marquesas become a UNESCO World Heritage Site.^[1] In May 2022 public consultations on their listing began.^[1]