Ailill Corrach mac Flainn (died 741) was a king of the Uí Failge, a Laigin people of County Offaly.
He was one of the many sons of Fland Dá Chongal, a previous king.
[2] The byname Corrach means unsteady.
Four of his brothers were slain at the Battle of Áth Senaig in 738 when the men of Leinster were crushed by the high king Áed Allán.
[4] This biography of a member of an Irish royal house is a stub.