All about the name

Reilly

Female

« Reilly is an Irish surname and given name derived from Ó Raghallaigh, meaning "descendant of Ragallach. »

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Meaning, origin, history

Reilly is an Irish surname and given name that is derived from the Irish sept or clan name Ó Raghallaigh. The exact meaning of the name is uncertain, but it is believed to mean "descendant of Ragallach," with Ragallach being a personal name of unknown etymology. The surname Reilly is one of the most common surnames in Ireland, and it has been traced back to the 14th century. The Reillys were an influential family in County Meath, where they held land and titles as chieftains. Over time, the name spread throughout Ireland and can now be found in many different regions. Reilly was also a popular given name among the Irish, particularly during the Victorian era when it was often used as a boys' name. Today, Reilly is used for both boys and girls and has become increasingly popular in recent years. According to data from the Social Security Administration, Reilly was the 347th most popular boy's name in the United States in 2019, and the 869th most popular girl's name. Some notable individuals with the name Reilly include American actress and model Rebecca Reilly, Irish poet and playwright Oscar Wilde (whose real name was Oscar Fingal O'Flahertie Wills Wilde), and Australian cricket player Mitchell Johnson. While these figures have made significant contributions to their respective fields, it is important to note that they are not representative of the broader history and meaning of the name Reilly. In summary, Reilly is an Irish surname and given name with a rich history dating back centuries. Its exact meaning may be uncertain, but its significance as a symbol of Irish heritage and culture is undeniable. Whether used as a first or last name, Reilly continues to be popular among families looking for a strong and distinctive moniker with deep roots in the Emerald Isle.

In numbers

Popularity of the name Reilly since 1880

Total births
5,403
Total since 1880
Peak year
1998
379 births
in 2023
50
Recent births (5 years)
5-year trend
-9%
vs previous 5 years