British honorary institution founded in 1917 by King George V. The only rank is that of Companion, awarded to men and women who have rendered conspicuous national service, especially in the advancement of culture. Membership of the Order is limited to 65, although foreigners can become honorary Companions. The prime ministers of Commonwealth countries are allowed to make nominations to the order.

Induction into the order does not confer any title or knighthood, but Companions are entitled to add CH after their name. The order's badge is a gold medallion suspended from a carmine ribbon and surmounted by a crown. It depicts an armoured knight mounted on a horse and an oak tree from which hangs a shield of the Royal Arms. The blue enameled border of the medallion bears the motto “In action faithful and in honour clear.”