Houdeng-Gà Âgnies () is a village of Wallonia and a district of the municipality of La Louvière, located in the province of Hainaut, Belgium.
At Houdeng, there is a 156-metre-tall radio tower, which is insulated against ground, as it was built as antenna for a mediumwave transmitter working on 1125 kHz with 20 kW.