Riley, a surname-turned-given-name and variant of Reilly, is derived from the Old English words ryge, meaning "rye," and leah, meaning "clearing" or "meadow." It can also be the Anglicized form of Ó Raghailligh, an Irish surname with an unknown meaning. It has appeared inside the Social Security Administration's top 1,000 for boy names every year since 1900 and debuted on the list for girl names in 1990. It has now been a top-50 girl's name every year since 2008, but hasn't cracked the top-100 for boy names since 2002. Actor Daryl Sabara and singer Meghan Trainor welcomed a son named Riley in 2021.
