Murphy is the most common surname in Ireland and is prevalent in both the USA, UK, and Canada, where interestingly enough, is the second most common name in the country. In fact, the name is so widespread that there are over 50,000 bearers of the name in Ireland and even more in the USA.
It’s derived from the Gaelic personal names MacMurchadh and O’Murchadh meaning sea warrior or sea battler. The origins of the name can first be found in the county of Wexford. Over time, the Murphys began to spread across Ireland with Leinster county becoming an eventual stronghold for the clan.