Alexandre Vincent Jandel (born in Gerbéviller, Lorraine, 18 July 1810; died in Rome, 11 December 1872) was a French Dominican, who became Master of the Order of Preachers.
Such was the impression made on him by Lacordaire, that he began to think of entering the Dominican Order, hoping to restore it in France, where it had been destroyed by the French Revolution.
Pope Pius IX, however, called him to Rome, and made him in 1850 vicar-general of the order ad beneplacitum, and in 1855 general for six years.
He also contributed to the growth of the second and third orders of Dominican nuns, promoted devotion to the rosary, and propagated the doctrine of Thomas Aquinas.
Such were the services he rendered to the Holy See especially as regarded the Zouaves, that Pius IX, who was warmly attached to him, intended to make him a cardinal; but he was elected general of the order, on 7 June 1862.