Kean An anglicisation of O Cathain which in turn is a derived from the Irish word for battle (cath). Mainly found in Waterford there is also a variation with an e at the end to be found in the Galway/Clare region. |  |
Keane An anglicisation of O Cathain which in turn is a derived from the Irish word for battle (cath). Originating in Galway and Clare region there is also a variation without the final e to be found in Waterford. | |
Kelly From the original Ceallaigh which means bright-haired. The most famous of the Kelly/O Kelly clan was descended from Tadhg Mor O Ceallaigh who died in the Battle of Clontarf in 1014. |  |