Kleinseebacher Mühle, Historical mill in Möhrendorf, Germany.

Kleinseebacher Mühle is a historical mill in Möhrendorf located on the left bank of the Regnitz River and equipped with three water wheels. These wheels formerly powered both flour production and sawing operations.

The mill was probably already operating in the 14th century, with its oldest documented mention dating to 1368. In 1571 the first disputes with the Baiersdorfer mill over the weir height were recorded, recurring for centuries. In 1778 two grain wheels and one smithy wheel were described; until then Nuremberg owned the mill. Rebuilt in 1803 with three wheels for flour and one for sawing, it passed in 1836 to the Fischer family, whose foil and mirror factory burned in 1838.

The building's later name, Mühlentheater, comes from cabaret artist Gerd Fischer, who bought the mill in 1992, renovated it and ran a small-stage venue there until 2016. The site is still addressed as Mühlentheater 2 in Möhrendorf.

The building currently houses private residences and commercial spaces, located about half a kilometer east of Kleinseebach village. Since it is privately owned, visitors can only view it from outside.

In 1836, the Fischer family from Erlangen converted the building into a foil and mirror factory, which led locals to call it 'Die Fabrik'. This name became so ingrained that people still use it today.