Eric Haraldsson (Old Norse: Eiríkr Haraldsson, ; c. 885 – 954), nicknamed Eric Bloodaxe (Old Norse: Eiríkr blóðøx, ), was a 10th-century Norwegian ruler. He is thought to have had short-lived terms as King of Norway and twice as King of Northumbria (c. 947–948 and 952–954).