Reilley

English, Irish

"rye clearing; courageous"

Reilley Origin and Meaning

The name Reilley is a girl's name.

Reilley is a feminine name of Irish and Gaelic origin, though it's also used for boys. It stems from the surname Reilly or O'Reilly, meaning 'valiant' or 'courageous.' Originally translating to 'outgoing one' or 'sociable one,' it reflects a spirited personality. As a first name, Reilley gained momentum in the 1990s and early 2000s alongside the trend of using Irish surnames as given names. This spelling variation adds a distinctive touch to the more common Riley/Rylee forms. The name carries a friendly, approachable energy while maintaining a connection to its rich Celtic heritage. Its popularity reflects parents' attraction to names that sound contemporary yet have authentic historical roots.