Hoensbroek is a Dutch town in the municipality of Heerlen. It is situated in the southeast of Limburg, a province in the southeast of the Netherlands. Until 1982, Hoensbroek was a separate municipality.
Hoensbroek is known for its medieval castle, Kasteel Hoensbroek, named after Knight Hoen, a member of the Hoen Family. It dates from around 1250.
Hoensbroek is also known for the fair on Ascension Day ( Hemelvaartsdag). The fair brings as many as 100,000 people every year to the town.
In medieval times, the town was known under the name of Gebrook, meaning as much as "Swampy Landscape", and belonged to the Family Hoen. Their family name eventually mingled with the original one, resulting in the name Hoensbroeck for the location and Van Hoensbroeck as the family name. The spoken dialect, Gerbrooker Plat, refers to the ancient name of Gebrook.
The population of Hoensbroek is estimated to be around 25,000.