Louis Philippe Marie Alexandre Berthier, 2nd Duke (later 3rd Prince) of Wagram (24 March 1836, Paris - 15 July 1911, Château de Grosbois) was a French nobleman and prince of Wagram.
He was the son of Napoléon Alexandre Berthier and grandson of Louis Alexandre Berthier. He married Bertha Clara von Rothschild and they were the parents of Alexandre Louis Philippe Marie Berthier, 4th Prince de Wagram.