Edmund Ironside (30 November 1016; , , ; sometimes also known as Edmund II) was King of the English from 23 April to 30 November 1016. Edmund's reign was spent fighting against a Danish invasion led by Cnut.

Edmund was born sometime between 990 and 993 to King Æthelred the Unready. Little is known about Edmund's life before 1015; the first concrete evidence of his agency was from the late 1000s and