Reilly
Meaning: “descendants of Raghallach”
About the name Reilly
Reilly is a girl name with Irish roots, meaning “descendants of Raghallach”.
It has a unique feel. In 2025, Reilly ranked #2855 for girls in the US, with 60 babies given the name. Its peak year since 1940 was 1998. Since 2000, 54% of US babies named Reilly were girls.
Etymology
From Irish, meaning “descendants of Raghallach”.
Name meaning adapted from Wiktionary (“Reilly”) by Wiktionary contributors, CC BY-SA 4.0.
- US rank 2025
- #2855
- In 2015
- #2137
- Babies in 2025
- 60
Popularity of Reilly, 1940–2025
Latest SSA data: 2025.
Popularity data: U.S. Social Security Administration national baby names (public domain; names given to at least 5 babies of one sex per year).
Names similar to Reilly
Name meanings marked or linked “Wiktionary” are adapted from Wiktionary by Wiktionary contributors, CC BY-SA 4.0; each name page links its source entry.