Horik II (died after 864), also known as Hårik or, in late sources, Erik Barn (Danish: "Erik the Child"), was King of the Danes from the fall of Horik I in 854 to an unknown date between 864 and 873. During his reign the Danish kingdom showed tendencies of breaking up. After his demise under unknown circumstances, Denmark entered a long period of obscurity, until the rise of the Jelling dynasty in the 10th century.