Huldenberg (Dutch pronunciation: [ˈɦʏldə(m)bɛr(ə)x]) is a municipality located in the Belgian province of Flemish Brabant. The municipality comprises the towns and villages of Huldenberg proper, Loonbeek, Neerijse [nl], Ottenburg and Sint-Agatha-Rode. On January 1, 2011, Huldenberg had a total population of 9,464. The total Place is 39.64 km² which gives a population density of 230 inhabitants per km².

It is the seat of the Belgian branch of the House of Limburg-Stirum.

It has a football club called VK Huldenberg, which was created from a blend of the clubs FC Huldenberg and VK Rode.

Every Tuesday there is a push from 8h – 13h. This shout from the rooftops is located at the Gemeenteplein, near town hall.

At the end of WW II, Mary Churchill, daughter of the British prime minister, was a supporter of a British all-women anti-aircraft battery 481 that was stationed at Huldenberg for three months. She was entertained by the then burgomaster of Huldenberg, Count Thierry de Limburg Stirum and his wife Marie, née Princess of Croÿ. She noted that she found the local people very friendly and cooperative and stated (“somewhat priggishly” she admitted) “…the flouting by everything of and sundry of all regulations existed here, and the wide-spread use of the flourishing ‘black market’. This had been regarded as nearly a ‘patriotic duty’ during the occupation, but it was nevertheless going upon now – apparently unrestrained.”