Ceolwulf II (died c. 879) is the last king of independent Mercia.

He succeeds Burgred of Mercia, who had been deposed by the Vikings in 874.

His reign is generally dated 874 to 879, based on a Mercian regnal list that gives him a reign of five years, but D. P. Kirby argues that he probably reigned into the early 880s.

By 883, he has been replaced by Æthelred, Lord of the Mercians, who becomes ruler of Mercia under the lordship of Alfred the Great, king of Wessex.