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.
Less common today
Reilly isn't in the latest US Top 1000. It last peaked at #623 in 1998.
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
