Wirdum (West Frisian: Wurdum) is a village in Leeuwarden municipality in the province of Friesland, the Netherlands.

[3] The village was first mentioned in 1335 as Weerdum, and means "settlement on the terp".

[4] Wirdum developed on the terp (artificial living mount) in the Middle Ages.

It used to be only accessible by water until road connections in the middle of the 19th century.

[5] St-Martin's village church was a tufa building in the 12th century.