Bergneustadt (German pronunciation: [bɛʁkˈnɔʏʃtat] ⓘ) is a municipality in the eastern part of the Oberbergischer Kreis (district), in North Rhine-Westphalia, Germany.

After early 17th century Neustadt went into decline, due to war, epidemics, fires and decreased strategic importance.

Older than the main town are Wiedenest (1154), Altenothe (1237), Belmicke (1296); they all are a part of Bergneustadt since 1969.

The municipality Bergneustadt consists of the main town Bergneustadt and 22 Ortsteile (districts): Altenothe, Attenbach, Auf dem Dümpel, Baldenberg, Belmicke, Bösinghausen, Brelöh, Freischlade, Geschleide, Hackenberg, Höh, Hüngringhausen, Immicke, Leienbach, Neuenothe, Niederrengse, Pernze, Pustenbach, Rosenthal, Rosenthalseifen, Wiedenest and Wörde.

The town developed around a castle built in 1301 by Rüttger von Altena ordered by Earl Eberhard II of the Mark.

The oldest seals of the city date from the middle of the 14th century and already show the present arms.

The city's major employer is Metalsa Automotive GmbH (formerly Innomotive Systems Europe GmbH or briefly called ISE) - a supplier of the automotive industry which is specialized in the development and production of innovative structural and safety systems for automobiles.