Largest nature reserves by area

Largest nature reserves by area ranked by area.

Last updated . Source: Wikidata.

As of 2026-05-04, Monte Submarino Sedlo tops the list with 4,120,497 km².

  1. #1 Monte Submarino Sedlo — 4,120,497 km²

    protected area in Portugal

    source Wikidata
  2. #2 Northeast Greenland National Park — 972,000 km²

    national park in Greenland

    Northeast Greenland National Park is the world's largest national park and the 10th largest protected area. Established in 1974, the Northeast Greenland national park expanded to its present size in 1988. It protects 972,000 km2 (375,000 mi2) of the interior and northeastern coast of Greenland and is larger than the area of Tanzania, but smaller than that of Egypt. This means that the national park is bigger than 166 of the world's 195 countries. It was the first national park to be created... Read more on Wikipedia.

    Wikidata
  3. #3 Lake Chad Game Sanctuary — 607,354 km²

    sanctuary for endangered wildlife in Borno State and Chad Basin

    source Wikidata
  4. #4 Ilhéus das Formigas — 523,926 km²

    protected area in Portugal

    source Wikidata
  5. #5 Samar Island Natural Park — 333,300 km²

    protected area in the Philippines

    The Samar Island Natural Park, in Samar, is the largest contiguous tract of old-growth forest in the Philippines. It is the country's largest terrestrial protected area, with an area of 333,300 hectares. The buffer is spread north to south over the island's three provinces and totals 458,700 hectares, about a third of the entire island of Samar. Read more on Wikipedia.

    Wikidata
  6. #6 Campo Hidrotermal Lucky Strike — 300,518 km²

    protected area in Portugal

    source Wikidata
  7. #7 Campo Hidrotermal Menez Gwen — 264,481 km²

    protected area in Portugal

    source Wikidata
  8. #8 Sado Estuary Natural Reserve — 239,713 km²

    protected area in Portugal

    Sado Estuary Natural Reserve is a nature reserve in Portugal. It is one of the 30 areas which are officially under protection in the country. It is located between the municipalities of Alcácer do Sal, Comporta and Setúbal. Read more on Wikipedia.

    Wikidata
  9. #9 Serra da Malcata Natural Reserve — 161,587 km²

    protected area in Portugal

    Serra da Malcata Nature Reserve is a Portuguese nature reserve. It was created in 1981 as a way to protect the then existent populations of Iberian lynx, since reintroduced; and in 1988, it was made a special protected area for birds. Read more on Wikipedia.

    Wikidata
  10. #10 Heifengheshide County level Natural Reserve — 139,300 km²

    natural reserve in China

    source Wikidata