Capian is a commune in the Gironde department in the region of Aquitaine. The municipality is located in the catchment area of the city of Bordeaux. The village has 668 inhabitants (as of 1 January 2011); so that the population has not changed much the last 40 years.

The municipality belongs to the canton in the Arrondissement Cadillac Langon.

Capian is a wine community; the vineyards are among the appellations Premieres Cotes de Bordeaux and Cadillac.