Diedenshausen is a small village, since 1975 a constituent community of Bad Berleburg in Siegen-Wittgenstein district and Arnsberg region in North Rhine-Westphalia in the Federal Republic of Germany.

It is located on the east side of the heavily forested Rothaargebirge (Red-haired Mountains), immediately on the border with Hesse.

Native son Daniel Womelsdorf was the first from the village known to emigrate to America in 1724.

Native son Jacob Weller von Molsdorf die Schwanfelder and his family were some of the earliest recorded members of this family to emigrate to America, landing in Philadelphia in 1710.

51°4′27″N 8°30′11″E / 51.07417°N 8.50306°E / 51.07417; 8.50306Alertshausen Arfeld Aue Beddelhausen Berghausen Christianseck Diedenshausen Dotzlar Elsoff Girkhausen Hemschlar Raumland Richstein Rinthe Sassenhausen Schüllar Schwarzenau Stünzel Weidenhausen Wemlighausen Wingeshausen