Riley · Daily fortune

Riley is a unisex English name taken from a surname with two distinct sources. Behind the Name explains that as an Irish surname it is a variant of Reilly, and as an English surname it derives from a place name meaning "rye clearing" in Old English. Wikipedia gives those Old English elements as ryge, "rye", plus lēah, "wood, clearing", and traces the Irish line to O'Reilly, from the Irish name Raghallach, of unknown meaning. Riley was uncommon for American boys before 1980, rose for both sexes through the 1980s and 90s, and has been more common for girls since 2003.

Behind the Name is clear that there are two origins rather than one: Riley comes "From a surname that comes from two distinct sources. As an Irish surname it is a variant of Reilly. As an English surname it is derived from a place name meaning 'rye clearing' in Old English." Wikipedia supplies the elements behind the English line — Old English ryge, "rye", plus lēah, "wood, clearing" — and identifies the Irish line as the surname O'Reilly, from the Irish personal name Raghallach, whose meaning it describes as unknown. So half of Riley has a transparent meaning and half has none, and which half applies to a given family is a question of ancestry, not etymology. The Behind the Name entry for Reilly was not cached, so its gloss is not independently verified here.

Riley's history as a given name is recent and, in the United States, unusually well documented in the direction of its gender. Behind the Name records that before 1980 it was an uncommon masculine name in America; through the 1980s and 90s it increased steadily for both boys and girls, and from 2003 onward it has been more common for girls in the United States. Elsewhere in the English-speaking world, the same entry notes, it has remained largely masculine — Wikipedia adds that in the United Kingdom it was the 40th most popular boys' name in 2016. The girls' side of American usage also generated a cluster of respellings that the boys' side did not: Rylee, Ryleigh, Ryley and Rylie. The 2025 SSA data captures the split at its widest: #48 for girls, #208 for boys.

In 2025 Riley ranked #48 for girls and #208 for boys in the United States (Social Security Administration) — a gap of 160 places between the two sexes for one spelling. Behind the Name dates the crossover to 2003 and notes that the name has remained largely masculine in the United Kingdom and Australia; Wikipedia records it as the 40th most popular boys' name in the UK in 2016. The feminine respellings Rylee, Ryleigh and Rylie draw off additional usage that these ranks do not capture.

Riley is an English surname-name and is pronounced the same way across the English-speaking world: /ˈɹaɪ.li/, RY-lee, stress on the first syllable. Behind the Name lists no forms of it in any other language, so there is no international variation to report; the respellings below change the spelling, not the sound.

Riley is the surname-name in its most worn-in form: friendly rather than preppy, a little Irish-American, and easy to say in any accent. Its openness on gender is the real decision point — in the US it now reads as a girls' name to most people under forty, while the same name on a British or Australian classmate is likely to be a boy's — so a family choosing it is also choosing which of those rooms they expect their child to be in. The respellings Rylee and Ryleigh push it decisively feminine and, to some ears, decisively 2010s.

Behind the Name names no bearers for Riley. The entries below are the few named explicitly in the Wikipedia article consulted; its long list of contemporary bearers was not mined.

Names that share Riley's surname-as-first-name shape, its unisex openness, or its sound.