Pierre Brûlart, Marquis de Sillery, viscount Puisieux, baron Grand Pressigny (1583 – April 22, 1640) was a Foreign minister of France under Louis XIII.

He was son of Brulart Nicolas, Marquis de Sillery, 1544-1624 and Claude Prudhomme.
He married Magdalena de Neufville (d. 1613), in 1606 (without issue).
He married Charlotte d'Estampes (ca 1597-1677) on January 11, 1615; they had children:

• Charlotte 1619-1697
• Roger Louis 1619-1691
• Nicolas
• Claude
• Mary Eleanor 1687
• Françoise
• Eleanor Adam 1699

Offices

• Ambassador to Spain
• Secretary of State
• Treasurer orders France
• Secretary of State for Foreign Affairs, April 24, 1617 to March 11, 1626