Château Rouge is a station of the Paris Métro, serving Line 4 in the 18th arrondissement of Paris. The station was opened on 21 April 1908 as part of the first section of the line from Châtelet to Porte de Clignancourt. The station is named for the Place du Château Rouge, named for a handsome residence of red bricks built nearby in 1760 and demolished in 1875.