Schloss Vollrads, Medieval castle and wine estate in Oestrich-Winkel, Germany.

Schloss Vollrads is a castle and wine estate in Oestrich-Winkel with roots in the medieval period and multiple building phases. The property displays a fortified tower from the 14th century, two large wings from the 17th century, an octagonal structure beside a rectangular pond, and vineyards surrounding the grounds.

A 'Vollradus in Winkela' is documented in 1218 and a 'Conradus dictus Vollradus armiger' in 1268, but no building from that time survives. The keep, a tower house surrounded by a square pond, dates to the first third of the 14th century and the Greiffenclau family. The two-winged manor house was built in 1684, and Countess Clara Matuschka-Greiffenclau added a third storey and two onion-domed towers in 1907/1908.

The name derives from the given name Vollradus, borne by a "Vollradus in Winkela" documented in 1218 and a "Conradus dictus Vollradus armiger" in 1268. The estate's oldest wine invoice dates from 1211, and the Schloßberg vineyard was first documented in 1412. In autumn a Straußwirtschaft opens in the courtyard, and the Schlosshof serves as an open-air stage for the Rheingau Musik Festival.

Most of the manor house is closed to the public; access is possible during events. In summer there are live music performances, and in autumn a wine bar opens in the inner courtyard. Civil wedding ceremonies can be arranged with the Oestrich-Winkel registry office.

Since the 1971 German wine law, Schloss Vollrads has been an approved Ortsteil designation, so its wines may be labelled "Schloss Vollrads Riesling" without the village name Winkel. The same rule applies to Schloss Johannisberg, Schloss Reichartshausen and the Steinberg at Kloster Eberbach.