Rising since 1985, #1,297 for boys today.
Popularity of Cormac since 1956
Babies named Cormac per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1950s | 5 |
| 1960s | 10 |
| 1970s | 60 |
| 1980s | 48 |
| 1990s | 269 |
| 2000s | 771 |
| 2010s | 1,607 |
| 2020s | 928 |
Meaning & origin
Cormac is a traditional Irish name that entered the U.S. naming pool relatively recently, first recorded in 1956. It has been rising in popularity since 1985, a trajectory that continued through its peak year in 2014. In 2025, Cormac ranked 1,297th, with a frequency of 1 in 11,387 births. The name is most common in Massachusetts, Maryland, and Minnesota, reflecting its appeal in states with established Irish-American communities. While still uncommon, Cormac has gained steady favor among parents seeking a distinctive but culturally rooted name.
Cormac is derived from the Old Irish name Corbmac, composed of the elements corb 'chariot' and mac 'son'. It was borne by several early Irish kings and legendary figures, including the mythical High King Cormac mac Airt. The name has remained in steady use in Ireland and among the Irish diaspora, and in the United States it began appearing in the mid-20th century.
Where Cormac is most popular
Births per 100,000 boys by state, 2025. The lightest shade means too few recorded births.
“Cormac” around the world
Where Cormac lands in the latest official birth statistics abroad, matched to the U.S. spelling.
Ireland
38
babies in 2025
Sources: CSO Ireland (Ireland).
Nicknames & variants
Nicknames: Cory
Sibling names for Cormac
Names that share Cormac's style, for a brother or sister.
Sisters: Maeve, Saoirse, Bridget, Niamh, Aisling, Corrin, Deidre, Ragan, Kaleen, Morna, Murriel, Caitriona, Carlyon, Daly, Sorcha, Finola, Rotha, Shevawn, Talullah
Brothers: Declan, Seamus, Eamon, Finn, Patrick, Brennon, Conan, Deklan, Derry, Doran, Finnegan, Keegan, Killian, Olan, Oneal, Oren, Ronan, Rory, Callaghan, Cashel, Conlan, Dermot, Fergus, Galvin, Kavan, Lochlann, Maclain, Ormond, Padraig, Shandon, Brennin, Broderic, Finan, Garvey, Gearold, Keefer, Maclan, Marcas, Quillan, Tighe, Whalen, Locklan, Carron, Conal, Cowan, Finbar, Finneus, Tarl
