From Presidents Reagan and Clinton to entertainers Carroll O'Connor and Aidan Quinn, it's clear that Celtic heritage abounds in the United States. While the names Aileen, Glenna, and Morgan are generally well known, what about Siobbhan, Fiona, or Branwen? If your last name is O'Brian, MacQueen, or Ellis, you may well already know of your Irish, Scottish, or Welsh background. But if your name is Roche, Preston, or Bonner, have you discovered a new branch in your family tree?

The Celtic Book of Names offers the most comprehensive collection of names available. Included is an alphabetical list of women's and men's names, divided by Irish, Scottish, or Welsh background. Each entry includes the meaning, legends or historical references, and variants of the name. Also provided is a comprehensive list of family surnames and a retelling of common Celtic myths and legends to give the names context.