The Westerwald Lakes (German: Westerwälder Seen) lie within the eponymous Westerwald Lake District (Westerwälder Seenplatte) in the Westerwald forest within the town quarters of Hachenburg, Westerburg, Montabaur and Dierdorf in the German state of Rhineland-Palatinate. The lakes consist of seven ponds:

• Brinkenweiher
• Haidenweiher
• Hausweiher
• Hoffmannsweiher
• Postweiher
• Dreifelder Weiher (also Seeweiher)
• Wölferlinger Weiher

At 123 hectares, the Dreifelder Weiher is the largest.

• Westerwald Lakes Development Association (Entwicklungsverband Westerwälder Seenplatte)

50°34′51″N 7°50′19″E / 50.5809°N 7.8387°E / 50.5809; 7.8387