Villa Paul Poiret in Mézy-sur-Seine, Yvelines, France, is an early 1920s Cubism-inspired Art Deco private house originally designed by architect Robert Mallet-Stevens.

The house stands in 48,500 square metres (12.0 acres) of parkland in Mézy-sur-Seine, to the west of Paris, overlooking the Seine Valley.

The house fell into disrepair, and was sold by Poiret in 1930 to actress Elvira Popescu, who lived there from 1938 to 1985.

Popescu hired the architect Paul Boyer in 1932 to alter the original design to the contemporary Art Deco Paquebot (steamship) style, converting windows to portholes, and rounding-off terrace corners.

Under the auspices of the French National Historic Landmark Commission and the Bâtiments de France, (the two bodies responsible for listed buildings), the Mallet-Stevens exterior and the Popescu/Boyer interior have been restored.