Windmill Větrník, Dutch-type windmill in Břevnov, Czech Republic.

Windmill Větrník is a tall tower structure built in Dutch-style design, featuring a rotating cap that could turn to catch wind from any direction. The building stands as a classic example of this milling type, with internal mechanisms that once ground grain efficiently.

The first pictorial evidence of a windmill on this site is a 1721 engraving after a drawing by Kilián Ignác Dientzenhofer; the year 1722 is carved in the gable plaster. It ground grain for the Břevnov Monastery until 1794, when miller Jakub Kohoutek bought it. A second brick mill, the so-called Small Tower, was built in 1840 and demolished around 1900, according to another source in 1912. The Opatrný family converted the mill into a dwelling with a Secession annex; it was registered as a cultural monument in 1964.

The structure demonstrates traditional grain processing methods that were common in this region for centuries. Its conversion to a residence shows how industrial buildings were adapted to meet changing community needs over time.

The mill stands at the edge of the Břevnov Monastery garden and forest park on U Větrníku Street, separated from the street by a high wall, at 360 m above sea level. The buildings now serve as a restaurant and guesthouse with an enclosed park, part of the forest and a tennis court, so the grounds are entered as guests or diners rather than as sightseers.

The mill's gable bears the year 1722, but the first pictorial record is a 1721 engraving after a drawing by Kilián Ignác Dientzenhofer, so the date may mark completion rather than construction. A second brick mill, the so-called Small Tower, stood from 1840 until about 1900.