Berltsum (Dutch: Berlikum) is a village in Waadhoeke municipality in the province of Friesland, the Netherlands.

[4] The village was first mentioned in 1355 as Berlichem, and means "settlement of the people of Berilo (person)".

[5][6] Berltsum developed as a terp (artificial living hill) village along the river Riedstroom several centuries before Christ.

[7] The domed Dutch Reformed church was built between 1777 and 1779 as a replacement of its medieval predecessor.

[4] At the end of the 19th century, Berltsum started to industrialize and in 1899, an auction was established.