Vleteren () is a municipality located in the Belgian province of West Flanders. The municipality comprises the towns of Oostvleteren, Westvleteren and Woesten. On January 1, 2006, Vleteren had a total population of 3,636. The total area is 38.15 km<sup>2</sup> which gives a population density of 95 inhabitants per km<sup>2</sup>.
<div class="floatleft" style="clear:none;">thumb|300px|[[Saint-Sixtus Abbey in Westvleteren]]</div>
<div class="floatleft" style="clear:none;">thumb|From the place Woesten: the St. Rictrudis church from southwest, rebuilt in 1923 (origin in the 15th century)</div>
<div class="floatleft" style="clear:none;">thumb|Place Woesten: Entrance portal of St. Rictrudis Church (from the west), the church had no spire</div>
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