Villa Andreae, Cultural heritage villa in Königstein im Taunus, Germany.

Villa Andreae is a mansion on Gaisberg hill in Königstein im Taunus with 29 rooms spread across about 1,520 square meters of living space. The building includes outbuildings such as stables with coachman quarters, a garage with an apartment, and a gardener's cottage.

The mansion was built in 1891 as a private residence for Frankfurt banker Albert Andreae de Neufville. During World War II, it was converted into a military hospital from 1942 onwards to serve medical purposes.

The name comes from banker Albert Andreae de Neufville, who had it built for his family. The estate shows how wealthy Frankfurt families of the late 1800s chose to live in the quiet Taunus countryside, away from the city.

The villa is a private, inhabited residence and cannot be visited; it is seen from outside, on the Gaisberg summit opposite Königstein Castle. The former 20,000 m² Siesmayer park is not open to the public. Surviving estate structures elsewhere in Königstein include a garage with an upper-floor flat at the western end of Theresenstraße and a pavilion at Fuchstanzstraße 18.

The 20,000 m² park was laid out by Heinrich Siesmayer, the garden architect also responsible for Frankfurt's Palmengarten. Of the estate's outbuildings, a garage with an apartment above still stands at the western end of Theresenstraße, and a pavilion with remnants of the original enclosure survives at Fuchstanzstraße 18. In 2009 the villa served as an exterior set for the youth film Hanni & Nanni.