Coordinates: 48°46′43″N 2°17′26″E / 48.7786°N 2.2906°E / 48.7786; 2.2906

Sceaux (French pronunciation: [so]) is a commune in the southern suburbs of Paris, France. It is located 9.7 km (6.0 mi) from the center of Paris.

Sceaux is famous for the Château of Sceaux, set in its large park (Parc départemental de Sceaux), designed by André Le Nôtre, measuring 2 km² (0.77 sq mi). The original château was transformed into a School of Agriculture during the Revolution and lost much of its luster. It was demolished at the beginning of the 19th century following its sale by the then French government. Sceaux castle was originally built by Jean-Baptiste Colbert, the minister of finance to Louis XIV and purchased by Louis' illegitimate son, the duke of Maine in 1699. His duchesse held court in a glittering salon at Sceaux in the first decades of the eighteenth century.

The present château, rebuilt 1856-62 in a Louis XIII style, is now the museum of Île-de-France open for visits.

Housing costs are extremely high, higher than in many districts of Paris, especially with streets facing the Parc de Sceaux, in the Quartier des musiciens, in dire opposition to the subsidised housing found in the poorer Quartier des Blagis.