Jacques Edouard Guerlain (French pronunciation: ​[ʒak ɡɛʁlɛ̃]; 7 October 1874 – 2 May 1963) was a French perfumer, the third and most famous of the Guerlain family. One of the most prolific and influential perfumers of the 20th century, over eighty of Guerlain’s perfumes remain known, though certain estimates suggest he composed some four hundred. Among his greatest fragrances are L’Heure Bleue (1912), Mitsouko (1919) and Shalimar (1925).