rare: Mayo, Louth etc. Ir. Ó Catháin. A variant of Kane which is much more numerous, and Keane which stands for a number of different names. Ó Catháin was an important sept in Derry upto the Plantation and there was another sept in Galway. The personal name Cathán (battler) was popular in medieval Ireland. GPN.
Very numerous: all areas except Munster. Ir. Ó Catháin. A leading sept of Derry. See O'Kane. The name appears as Keane in Munster. Cath = battle (part of some first name)
Very rare: Derry. See Kane.
Very numerous: Derry-Tyrone-Donegal and Ulster generally. Ir. Ó Catháin. A major sept of Derry (Ciannacht Glinne). The name occurs as Keane elsewhere. See also Kane. IF.
Quite numerous: scattered. Ir.Lang. See Kane, Keane.
Kane, Keane: an-líonmhar ar fud na tíre. (1) Clann de Chinéal Eoghain (Doire), (2) Clann d'Uí Fiachrach (Gaillimh). Ach, sa Mhumhain, ní mór aire d'Ó Céin, q.v. IF.
Variants and total numbers.
Click to see county numbers.