Le Tellier or Letellier is a surname, and may refer to:
Camille le Tellier de Louvois (1675–1718), French cleric
Charles-Maurice Le Tellier (1642–1710), Archbishop of Reims
François-Michel le Tellier, Marquis de Louvois (1641–1691)
Hervé Le Tellier (b. 1957), French writer
Louis Charles César Le Tellier, duc d'Estrées (1695–1771)
Louis François Marie Le Tellier (1668–1701), French statesman
Luc Letellier de St-Just (1820–1881), Canadian politician
L. S. LeTellier (1887–1975), football coach
Michel le Tellier (1603–1685), French statesman
