Kielley is used as a family name or surname in Ireland. It is 7 characters long in length.
Lastname Kielley is form of Kelly. Grandson of Ceallach meaning "contention".
Kielley is the form of the O'Kelly. Descendant of Cellach, Prince of the Ui Many in the ninth century.
Kielley is a variation of Kelly. The Kelleys were in old times resident in the parish of that name in Devonshire, and the Irish Kellys, now very numerous, bear the same arms. According to the genealogy in B.L.G., the Kellys of Kelly "may look back beyond the Conquest and derive themselves from the ancient Britons!" Mr. Shirley says: "Kelly is a manor in the hundred of Lifton, about six miles from Tavistock. The manor and advowson have been in the family at least from the time of Henry II. and here they have uninterruptedly resided since that very early period." The similar name Kellie is a diminutive of Charles.
Lastname is variant of O'Kelly. By some genealogists the O'Kellys are considered as of a common stock with the Kellys of England; but they deduce themselves fromCellach, chief of Hy Many, and fourteenth in descent from Maine Mor. The name O'Cellaigh or O'Kelly was first assumed by the grandsonof that per sonage in the tenth century. B.L.G.