Karel Jaromír Erben (; 7 November 1811 – 21 November 1870) was a Czechfolklorist. He is best known for his collection ''Kytice'', which contains poems based on traditional and folkloric themes. He also wrote ''Písně národní v Čechách'' ("Folk Songs of Bohemia") which contains 500 songs and ''Prostonárodní české písně a říkadla'' ("Czech Folk Songs and Nursery Rhymes"), a five-part book that brings together most of Czech folklore.