It is named after Eugène Charles Catalan, a French-Belgian mathematician of the 19th century.
Charles Darwin | Charles Dickens | Charles, Prince of Wales | Ray Charles | Charles II of England | Charles I of England | Charles Lindbergh | Catalan | Charles de Gaulle | Charles II | Charles | Charles I | Eugene O'Neill | Prince Charles | Eugene, Oregon | Catalan language | Charles V | Eugène Delacroix | Charles Scribner's Sons | Charles Aznavour | Charles University in Prague | Charles Stanley | Charles Bukowski | Charles Mingus | Charles Ives | Charles Bronson | Charles Babbage | Charles III of Spain | Charles Cornwallis, 1st Marquess Cornwallis | Charles Baudelaire |