Freusburger Mühle, Historic watermill in Kirchen, Germany.

Freusburger Mühle is a former water-powered corn mill in the Freusburg district of Kirchen, on the Sieg. It was first mentioned in 1437 and originally stood on the right bank below Freusburg Castle; probably in the 17th century it was moved to the opposite bank, somewhat downstream, to gain a greater fall. Roller mills were installed in 1888.

The mill was first documented in 1437 through a deed of gift and operated as a mandatory grinding facility until 1845. The structure survived for centuries as an industrial facility before its function eventually modernized.

The mill represents the grain-processing heritage that shaped the economic life of this region for centuries. Visitors can still see traces of this craft tradition in the preserved buildings today.

The site sits near several hiking trails, including Natursteig Sieg and Druidensteig, which allow visitors to access the surrounding areas. Its location along the Sieg makes it a good starting point for exploring the broader landscape and walking routes in the region.

The milling operation ceased in 1978, not a conversion into a power plant; only a small hydroelectric use for generating electricity remains today, and parts of the historic buildings have been put to other uses. The roller mills installed in 1888 had earlier allowed imported grain to be processed.