Vlieland is a municipality in the northern Netherlands. The municipality of Vlieland has only one major town: Oost-Vlieland. It is the second-least densely populated municipality in the Netherlands (after Schiermonnikoog). A second village, West-Vlieland, was lost to the sea in 1736.Vlieland is one of the West Frisian Islands, lying in the Wadden Sea. It is the second island from the west in the chain, lying between Texel and Terschelling. Vlieland was named after the Vlie.