Charles-Maurice Le Tellier (1642 in Turin – 1710 in Reims) was a French Archbishop of Reims.
The son of Michel Le Tellier and brother of François-Michel le Tellier, Marquis de Louvois, both ministers of Louis XIV, he studied for the Church, won a doctorate of theology at the Sorbonne and was ordained priest in 1666.
Provided, even before his ordination, with several royal abbeys, he rapidly rose to the coadjutorship of Langres, then to that of Reims and became titular of that see at the age of twenty-nine.
His administration was marked by zeal and success along the lines of popular education, training of clerics, parochial organization, restoration of ecclesiastical discipline and extirpation of Protestantism from the Sedan district.
The importance of his see together with the royal favour brought him to the front in the affairs of the Church in France.
The same holds true of the various controversies in which he took part: the Nouveau Testament de Mons, the theory of philosophical sin and Molinism.
Le Tellier is remembered as a successful administrator, an orator of some merit, a promoter of letters, a protector of Saint John Baptist de la Salle, Mabillon, Ruinart, etc., and a bosom friend of Bossuet, whom he consecrated, and visited on his deathbed, and whom he induced to write the "Oraison funèbre de Michel Le Tellier." His manuscripts, in sixty volumes, are at the Bibliothèque Nationale of Paris, and his library of 50,000 volumes at the Bibliothèque Sainte-Geneviève.
Le Tellier was also a manuscript collector (e.g.