Château Thorenc, Heritage château in Cannes, France.

Château Thorenc was a holiday residence built around 1870 in the Terrefial district of Cannes, near the Californie massif on the edge of Le Cannet. Its 36-hectare park ran from the Pezou hill to the boundaries of Le Cannet and Vallauris, with tropical planting below and pine and oak woods above. The château itself was demolished in 1968 and replaced by an apartment building; the entrance gate and park survive.

The original residence was built in 1870 for the Duchess of Bedford and experienced several changes of ownership during its existence. The structure was demolished in 1968 after decades of shaping the architectural heritage of the city.

Bảo Đại, the last emperor of Annam, kept Château Thorenc as his Cannes residence from 1937 until the early 1960s. He was often seen in the streets of Cannes riding a 1,000 cc Vincent H.R.D. sidecar. He called on Jacques Courtois, a Parisian decorator based in Nice, to work on the interiors.

The château itself no longer exists: it was demolished in 1968 and replaced by an apartment building, so the estate is a private co-propriété and not open to visitors. What remains visible from the public street is the monumental entrance, with white pillars lettered "CHATEAU THORENC" and "ENTREE DU PARC" and wrought-iron gates topped with gilded spear finials. The park, its nymphaeum and the cryptoportique are listed in the regional inventory of cultural heritage since 2009.

Two leading architects, Louis Süe and Léon Le Bel, redesigned the building in 1930 and gave it a modern appearance. Painter Jean-Gabriel Domergue created a Venetian salon inside, representing a rare artistic collaboration between architects and visual artists.