| Louis Phélypeaux | |
| Marquis of Barbezieux | |
| Full Name: | Louis François Marie Le Tellier |
| Spouse: | Louise de Crussol (12 November 1691) Marie Thérèse d'Alègre (11 January 1696) |
| Issue: | Marie Madeleine, Duchess of Harcourt Louise Françoise, Princess of Turenne |
| Father: | François Michel Le Tellier, Marquis of Louvois |
| Mother: | Anne de Souvré |
| Birth Date: | 23 June 1668 |
| Birth Place: | Paris, France |
| Death Place: | Versailles, France |
| Death Date: | 5 January 1701 (aged 33) |
| Module: | |
| Signature: | Unterschrift Louis François Marie Le Tellier Marquis of Barbezieux (1668-1701).png |
Louis François Marie Le Tellier, Marquis of Barbezieux (23 June 1668 – 5 January 1701) was a French statesman.
Born in Barbezieux-Saint-Hilaire (Charente), he was the third son of the Marquis de Louvois, War Minister to Louis XIV.
After the death of Louvois, Louis XIV appointed Barbezieux to succeed his father and grandfather, becoming the third Le Tellier to serve Louis XIV at the War Ministry. Although talented, the 23-year-old neglected his office in favour of his pleasures. The King complained to Barbezieux's uncle, Charles-Maurice Le Tellier, Archbishop of Reims that:
Your nephew has talents, but he does not make good use of them. He prefers to dine with princes rather than work. He neglected his affairs for his pleasures. He leaves officers waiting too long in his antechamber; he speaks to them disdainfully and sometimes harshly.
Barbezieux was twice married: