Richelieu (play), a play written by Edward Bulwer-Lytton, 1839

Cardinal Richelieu, Armand-Jean du Plessis, Cardinal and Duc de Richelieu (1585–1642), French Cardinal, Duke, and politician, who served as Louis XIII's chief minister

Charles de Gaulle nuclear aircraft carrier, whose first name was Richelieu

Armand-Emmanuel du Plessis, Duc de Richelieu, Armand Emmanuel Sophie Septemanie du Plessis, duc de Richelieu (1766–1822), statesman, grandson of the marshal

French battleship Richelieu (1939)

Emmanuel-Armand de Richelieu, duc d'Aiguillon, Emmanuel-Armand de Vignerot du Plessis de Richelieu, duc d'Aiguillon (1720–1782), statesman, nephew of the marshal

Louis François Armand du Plessis, duc de Richelieu (1696–1788), marshal of France, grandnephew of the cardinal

Richelieu (provincial electoral district), a Quebec provincial electoral district

Richelieu, Indre-et-Loire, a commune of the Indre-et-Loire département in France

Richelieu River, in Quebec

Rue de Richelieu, a street of Paris.

Richelieu (novel), a novel written by George Payne Rainsford James, 1829

French battleship Richelieu (1873)

Richelieu, Quebec