Großwelsbach (pronounced [gʁoːsˈvl̩sbax]) is a village and an Ortsteil (part) of the town of Bad Langensalza in Thuringia, central Germany, with about 250 inhabitants.

[2] Großwelsbach is situated 8.4 kilometres (5.2 mi) north of Bad Langensalza[1] on the Landesstraße (state road) 1031 near the Unstrut river in an agricultural area.

The Gernrode Abbey once had a nunnery here, which is why there were already large agricultural areas in the village in past centuries.

Hans (von) Berlepsch acquired the nunnery estate at that time, and the family owned the property for a long period.

The manor, long owned by the von Berlepsch family, was badly damaged by fire in 1655.