Hilchenbach (German pronunciation: [ˈhɪlçn̩ˌbax] ⓘ) is a town in the Siegen-Wittgenstein Kreis (district) of North Rhine-Westphalia, Germany.

The town is made up of the following centres: Allenbach, Dahlbruch, Grund, Hadem, Helberhausen, (Alt-)Hilchenbach (alt means "old"), Lützel, Müsen, Oberndorf, Oechelhausen, Ruckersfeld and Vormwald.

In a document from 20 July 1365, a "firm house" – "festes Haus" – (Wilhelmsburg) in Hilchenbach is mentioned, which from 1489 to 1622 was enfeoffed to the Wischen von Langenau noble family.

[1] Hilchenbach's civic coat of arms might heraldically be described thus: Azure a wolf statant or langued gules; crest: a castle with three crenellated towers argent.

Hilchenbach maintains town friendship links with: In the constituent community of Dahlbruch is found the Viktoriakino, a cinema also used as a theatre.

In 1568, William I of Orange-Nassau drafted plans to free the Netherlands at the castle and made final preparations for the campaign there.

Between the constituent communities of Dahlbruch and Allenbach lies the Breitenbachtalsperre, or Breitenbach Dam, which furnishes a water supply to the Siegerland.

Grund hosts the KulturPur, an international tent theatre festival at Whitsun on the "Giller" (a local heath).

The main transport connections are in the east-west direction by Federal Highway (Bundesstraße) B 508 and the Rothaar Railway from Kreuztal to Erndtebrück.