Aldeboarn (Dutch: Oldeboorn) is a village in Heerenveen in the province of Friesland, the Netherlands.

Alde (old) is usually added to distinguish from another village perhaps Oosterboorn [nl].

[4] Aldeboard developed in the 11th or 12th century along the Boorne river as an elongated terp (artificial living mound) village.

It is a slender tower with crown consisting of a three-story wooden lantern with one closed and two open pavillons.

The tower is leaning slightly and has a displacement of 1.5 metres (4 ft 11 in).