Former islands of the Netherlands

Urk (; ; ) is a municipality and a town in the Flevoland province in the center-north of the Netherlands with a population of 22,173 as of 2025. It is surrounded by the Noordoostpolder on land and is on the coast of the IJsselmeer. Urk was formerly an island in the Almere, an inland sea that would become part of the Zuiderzee in the 13th century after a series of incursions by the North Sea. The building of a dike from Lemmer in 1939 ended Urk's status as an island and connected it to the Dutch mainland.

Schokland () is a former island in the Dutch Zuiderzee, in the municipality of Noordoostpolder. Schokland was an elongated strip of peat land which ceased to be an island when the Noordoostpolder was reclaimed from the sea in 1942. It is now just a slightly elevated part of the polder, with a still partly intact retaining wall of the waterfront of Middelbuurt. On 1 April 2014, it had 8 inhabitants, but according to Statistics Netherlands there are five people living on the former island.

thumb|Map of North Holland from 1865 with Wieringen still an island

Marken (; Marken's dialect: Mereke) is a village in the municipality of Waterland in the province of North Holland, Netherlands. It had a population of 1,730 as of 2024, and occupies a peninsula in the Markermeer. It was, until 1957, an island in the former Zuiderzee. The characteristic wooden houses of Marken are a tourist attraction.

right|thumb|Eierland (here spelled "Eyerland") on a map originally published in 1702. Eierland () is a former island in the Netherlands. It is now the northern part of the island of Texel. The name means "egg land", named for the seagull eggs that were collected on the island and sent to Amsterdam.

West Frisian island in the Wadden Sea