Reilly
Reilly is a girl's name of Irish origin.
Meaning
Courageous, valiant, or descendant of Raghallach.
Origin and history
Reilly is an Anglicized surname of Irish origin, derived from the Gaelic family name Ó Raghallaigh. Historically used primarily as a surname or masculine given name, it has become a popular unisex name in the United States, including for girls. In recent years, it remains a steadily used option for female newborns.
Popularity in the United States
5,528 babies in the United States have been named Reilly since 1880. It ranks #2312 all-time. Among babies born since 2020 it ranks #1716.
States where it is most popular
- CA (11.3 %)
- NY (11 %)
- PA (9.6 %)
- IL (7.6 %)
- NJ (6.4 %)
Trends by decade
| Decade | Births |
|---|---|
| 1880-1890 | 0 |
| 1890-1900 | 0 |
| 1900-1910 | 0 |
| 1910-1920 | 0 |
| 1920-1930 | 0 |
| 1930-1940 | 0 |
| 1940-1950 | 0 |
| 1950-1960 | 0 |
| 1960-1970 | 0 |
| 1970-1980 | 6 |
| 1980-1990 | 108 |
| 1990-2000 | 1,596 |
| 2000-2010 | 2,437 |
| 2010-2019 | 996 |
| 2020-2029 | 385 |
Famous people named Reilly
- Reilly Dolman: Actor
Nicknames
Rei, Lee
Fun facts
- Reilly is one of many traditional Irish family surnames that successfully transitioned into a popular contemporary given name in North America.
- While Riley is the most common spelling in the United States, Reilly preserves the traditional Irish surname spelling with 'e-i'.