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.

At the end of WW II, Mary Churchill, daughter of the British prime minister, was a member 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,[3] née Princess of Croÿ.

She noted that she found the local people very friendly and helpful and stated ("somewhat priggishly" she admitted) "...the flouting by all of and sundry of whatever regulations existed here, and the wide-spread use of the flourishing 'black market'.