As of 2026-10-12, Laurissilva da Madeira (Site of Community Importance) tops the list with 154,620 km².
- #1 Laurissilva da Madeira (Site of Community Importance) — 154,620 km²
protected area in Portugal
source Wikidata - #2 Kras — 48,041 km²
protected area in Slovenia
source Wikidata - #3 Inner Hebrides and the Minches — 13,814 km²
Special Area of Conservation in Scotland, UK
source Wikidata - #4 Treis Vryses — 9,913 km²
protected area in Greece
source Wikidata - #5 Sylter Außenriff — 5,314 km²
protected area in the European Union defined by the habitats directive in Ausschließliche Wirtschaftszone, Germany
source Wikidata - #6 Maceda - Praia da Vieira — 5,026 km²
protected area in Portugal
source Wikidata - #7 Doggersbank — 4,735 km²
special protection areas defined by the habitats directive in the Netherlands
source Wikidata - #8 NTP S-H Wadden Sea and adjacent coastal areas — 4,521 km²
protected area in the European Union defined by the habitats directive in Schleswig-Holstein, Germany
source Wikidata - #9 Žehuňský rybník — 3,016 km²
special area of conservation in the Czech Republic
source Wikidata - #10 Nationalpark Niedersächsisches Wattenmeer — 2,770 km²
protected area in the European Union defined by the habitats directive in Niedersachsen, Germany
source Wikidata