Windmill in Janov, Cultural monument in Janov, Czech Republic.

The Windmill in Janov is a three-storey, unplastered conical masonry tower of the Dutch type, built in 1844 from ashlar sandstone blocks on a circular plan. Its asymmetrically placed arched windows have wooden shutters, and the conical roof, originally covered with slate, is now of cardboard. The original stone staircase and millstones set into the floor survive inside.

The sandstone windmill was built in 1844 as a Hollander-type mill. Milling stopped in the 1920s, after which it was converted for housing. Its last residents were expelled in 1946 and the building fell into decay; in the 1960s it was restored and turned into a holiday property. It is listed as a cultural monument of the Czech Republic.

The mill's Czech name is Větrný mlýn v Janově, and it is one of three windmills in the area, together with those at Arnoltice and Růžová, each 2 to 3 km apart. A yellow-marked hiking trail leads to it from the village centre. Since the 1960s the building has served as a holiday property.

The mill stands about 300 m from the centre of Janov at an elevation of 320 m, reached by a yellow-marked hiking trail. It is one of three mills — the others are in Arnoltice and Růžová — spaced 2 to 3 km apart, so the three can be combined on one walk.

The structure was built from local sandstone, a material that was readily available in the region and proved durable over time. This choice of material shows how craftspeople used practical and traditional solutions suited to their location.