Fontenoy-Ségur, Art Deco architectural ensemble in 7th arrondissement, France

Fontenoy-Ségur is an architectural complex in the 7th arrondissement consisting of two connected buildings with geometric patterns and decorative details from 1930s Art Deco design. The structures blend modern materials with classical proportions and currently house various French government offices.

The Fontenoy building was completed in 1932 by architect André Ventre and initially served as the home of the Merchant Marine Ministry. The entire complex received protected monument status in 2013.

The Fontenoy building's entrance ornamentation is the work of ironworker Raymond Subes, and the facade carries a reclining figure holding a ship model above a window where a sailing ship glows amber. The carved inscription "MESSAGERIES MARITIMES" recalls the Merchant Marine Ministry that once occupied the building.

The complex is located in a central administrative area and its exteriors are visible from the surrounding streets, though interior spaces are not open to the public. Walking around the nearby avenues allows good views of the architectural details from different angles.

The only metalwork named in the sources is Raymond Subes's ornamentation of the door at 3 place de Fontenoy; no work by Jean Prouvé is recorded here. The Ségur building, finished in 1938, was nearly chosen in 2004 as the seat of the Organisation internationale de la francophonie because of its proximity to UNESCO, a plan soon dropped.