Königs Wusterhausen (German pronunciation: [ˈkøːnɪçs vʊstɐˈhaʊ̯zn̩] ⓘ; Lower Sorbian: Parsk, pronounced [ˈparsk]) is a town in the Dahme-Spreewald district of the state of Brandenburg in Germany a few kilometers outside Berlin.

The municipal reforms in 2003 brought about seven amalgamations, since which time the communities of Zeesen, Kablow, Diepensee, Niederlehme, Senzig, Wernsdorf and Zernsdorf have belonged to Königs Wusterhausen, the town's land area has grown sixfold, and its population has doubled.

In 1320, in connection with an investiture on 19 September, the settlement ("hus to wosterhusen") and the castle received their first-known documentary mentions.

In 1500 the estate of Wendisch Wusterhausen was verified for the first time by the Schenken (a noble title) of Landberg zu Teupitz.

On 14 October 1669 Privy Councillor Friedrich von Jena acquired the castle and the village of Wendisch Wusterhausen.

In 1862, novelist and poet Theodor Fontane visited Königs Wusterhausen for his Wanderungen durch die Mark Brandenburg.

In 1972, Germany's deadliest-ever aviation accident occurred when an Interflug passenger flight crashed near Königs Wusterhausen, killing 156 people.

1972 also saw the collapse of Königs Wusterhausen's central tower, which at 243 m tall was the most prominent structure at the radio transmission facility.

They are located near the post office and hold weekly services as well as other Bible studies including "Jungschar" and a monthly "Jugendtreff".