埃德蒙二世（Edmund II，988年－1016年11月30日），绰号刚勇者（Ironside），是决策无方者埃塞尔雷德之子，1016年4月23日到11月30日的英格兰国王。刚勇者的绰号，来自他对丹麦克努特大帝的反抗。

1012年，丹麦国王八字胡斯韦恩击败埃德蒙之父埃塞尔雷德，自称英格兰国王。1016年，埃塞尔雷德死亡，埃德蒙审时度势跟斯韦恩一世之子克努特大帝共治英格兰，结果当年11月便告不治，使克努特大帝完全统治了英格兰。

Edmund II (died 30 November 1016), usually known as Edmund Ironside, was King of England from 23 April to 30 November 1016. He was the son of King Æthelred the Unready and his first wife, Ælfgifu of York. Edmund's reign was marred by a war he had inherited from his father, his cognomen "Ironside" was given to him "because of his valour" in resisting the Danish invasion led by Cnut the Great.