Jean de Monluc (died 1579) was a French noble, clergyman, diplomat, and courtier. He was the second son of François de Lasseran de Massencome, a member of the Monluc family; and Françoise d' Estillac. His birthplace is unknown, but it has been observed that his parents spent a great deal of time at their favorite residence at Saint-Gemme in the commune of Saint-Puy near Condom. Jean's elder brother Blaise de Lasseran-Massencôme, seigneur de Montluc became a soldier, and eventually Marshal of France (1574).