Auisle

Auisle or Óisle ( or ; died c. 867) was a Viking leader in Ireland and Scotland in the mid-late ninth century. He was the son of the king of Lochlann, identified in the non-contemporary Fragmentary Annals of Ireland as Gofraid, and brother of Amlaíb Conung and Ímar, the latter of whom founded the Uí Ímair dynasty, and whose descendants would go on to dominate the Irish Sea region for several centuries. Another Viking leader, Halfdan Ragnarsson, is sometimes considered a brother. The Irish Annals title Auisle, Ímar and Amlaíb "kings of the foreigners". Modern scholars use the title "kings of Dublin" after the Viking settlement which formed the base of their power.

Auisle is mentioned three times in contemporary annals. In the first entry, dated 863, he and his brothers are recorded as having raided Brega, including underground tombs at Achad Aldai, Cnodba, and Dubad. The second, dated 866, records Auisle and Amlaíb raiding Pictland, taking away many hostages. In the final entry, dated 867, the death of Auisle at the hands of unnamed kinsmen is reported. According to the later Fragmentary Annals his brothers Amlaíb and Ímar plotted his death, with Amlaíb striking the killing blow.