If you're curious to know more about Irish surnames, you'll find the three pages I've just added to my website fascinating.
You can find out how the Mac/Mc and O' prefixes evolved, learn how many of the best-known Irish last names in fact originate in France and how very few evolved from placenames. Some of the most quoted myths about the surnames of Ireland are also debunked.
Getting more specific, you can also find out about the 20 most common surnames (in 1890) as well as 10 randomly-chosen but well-known family names.
Find out more about Irish names