The Vaalserberg (Dutch pronunciation: [ˈvaːlsərˌbɛr(ə)x]; Limburgish: Vaolserberg [ˈvɒː˦˨lsəʀˌbæː˦˨˧ʀəx]) is a mountain with a height of 322.4 metres (1,058 ft)[1] above NAP and is the highest point in the European part of the Netherlands.

The Vaalserberg was the highest point anywhere in the Netherlands until the Caribbean island of Saba, with its 887-metre-high (2,910-foot) volcano, was incorporated into the country as a "special municipality" in 2010.

The border intersection has made the Vaalserberg a well-known tourist attraction in the Netherlands, with a 50 metres (160 ft) tower on the Belgian side (Dutch: Boudewijntoren; French: Tour Baudouin; German: Balduin-Turm), opened in 1994 to replace the previous 33 metres (108 ft) tower, built in 1970.

The names of the roads in Belgium (Route des Trois Bornes) and Germany (Dreiländerweg) refer to the present three bordering countries.

The second 20 metres (66 ft) tower opened on 11 August 1951 and was demolished over the winter of 2010–2011 because of its poor condition and high maintenance requirements.