In the families of Mac Carthy, O’Sullivan and O’Driscol, Finghin [Fineen], a name very general among them, and which signifies _the fair offspring_, has been anglicised to Florence. Among the same southern families the name Saerbrethach, which prevails among the Mac Carthys in particular, and which signifies the _noble justice_, is translated Justin. In the family of O’Donovan, as the writer has had every opportunity of knowing, the name Murrogh has been metamorphosed to Morgan; Dermod, to Jeremiah; Teige, to Timothy; Conor or Concovar, to Cornelius; Donogh, to Denis; and Donnell, to Daniel. In the family of O’Brien, the hereditary name of Turlogh has been changed to Terence; Mahon, to Matthew; Murtogh or Moriertagh, to Mortimer (but this very lately); and Lachtna and Laoiseach, to Lucius. Among the O’Gradys the name Aneslis is rendered Stanislaus and Standish. In the families of O’Donnell, O’Kane, and others, in the province of Ulster, Manus, a name borrowed by those families from the Danes, is now often rendered Manasses. In the families of Mac Mahon and Mac Kenna, in Ulster, the name Ardgal or Ardal, signifying _of high prowess or valour_, is always anglicised Arnold. In the family of O’Madden of Shilanamchy, in the south-east of the county of Galway, the hereditary name of Anmcha, which is translated Animosus by Colgan, is now always rendered Ambrose, to which, it will be readily granted, it does not bear the slightest analogy. Among the families of Doyle, Cavanagh, and others, in the province of Leinster, the name Maidoc, or Mogue, which they adopted from St Maidoc, or Aidan, the patron saint of the diocese of Fernes, is now always rendered Moses among the Roman Catholics, and Aidan among the Protestants! (any thing to make a difference.) Among the O’Neills in the province of Ulster, the name Felim, or Felimy, explained as meaning _the ever good_, is now made Felix; Con, signifying _strength_, is made Constantine; and Ferdoragh, meaning _dark-visaged man_, is rendered Ferdinand. Among the O’Conors of Connaught, the name Ruaidhri, or Rory, is anglicised Roderic, but among most other families it is rendered Roger. In the same family, Tomaltach is rendered Thomas; Aodh, Hugh; and Eoghan, Owen. In the families of Mac Donnell and others in Scotland, and in the north of Ireland, the name Aengus, or Angus, is always rendered Æneas. Among the O’Hanlys of Slieve Bawn, in the east of the county of Roscommon, the name Berach, which they have adopted from their patron saint, and which is translated by Colgan, _directe ad scopum collimans_, is now always and correctly enough rendered Barry. Throughout Ireland the old name of Brian is now rendered Bernard, and vulgarised to Barney, which is more properly an abbreviation of Barnaby than of Bernard. Among the O’Haras and O’Garas in the county of Sligo, the name Kian, which they have adopted from their great ancestor Kian, the son of Olioll Olum, king