Louis Deshayes, Baron de Courmemin (1600 – 12 October 1632) was a French diplomat.
Advisor to Louis XIII,[1] he was sent on several missions to the Levant, Denmark, Safavid Iran and the Tsardom of Russia.
Having joined a conspiracy against Cardinal Richelieu, he was arrested under the orders of his rival Hercules de Charnacé, at Mainz[2] and beheaded at Béziers in 1632.