Courageous or valiant
Derived from the Irish surname Ó Raghallaigh, meaning descendant of Raghallach. The name is historically associated with the powerful O'Reilly clan in County Cavan, symbolizing resilience and bravery.
About 60 girls were named Reilly in 2025.
US births per 5-year period, 1990–present (SSA data).
Canadian actor known for the series Travelers
American comic book artist and writer
Professional American tennis player
Professional ice hockey player
The same feel as Reilly — far less common.
Hidden gems that stand out.
