The Clockarium is a museum in Schaerbeek, in the Brussels-Capital Region, Belgium, devoted to the Art Deco ceramic clock. The Clockarium houses a collection of 3000 clocks, 1300 of which are exhibited in a beautiful Art Deco mansion from the 1930s.

It specializes into the faience mantel clocks, which were the first timepiece affordable to everyone and proudly decorating many homes in Belgium and Northern France during the 1920s and 1930s. It is located on the Reyers boulevard in a stylish Art-Deco house built in 1935 by Belgian architect Gustave Bossuyt.