Tempelherrenhaus (House of the Templers) was a venue in Park an der Ilm, Weimar, Germany, which emerged in the 18th century.

An old greenhouse, the Alte Orangerie, was converted to a romantic lounge in the park for the ducal court.

The upper corners of the roof were adorned in 1788 by court sculptor Martin Gottlieb Klauer, who created four wooden life-size sculptures representing Templar knights.

In March 1945, the end of the Second World War, the house was destroyed by a bomb attack on the town.

The other three are located in the basement of the Roman house, in an exhibition of the history of the Park an der Ilm.