Rylie is a girls' spelling of Riley, which is either the Irish surname O Raghailligh, of uncertain meaning, or an English place name meaning "rye clearing". The many spellings Riley, Rylee, Ryleigh and Rylie have together been one of the most popular girls' names of the 21st century. Rylie climbed from number 632 in 2000 to a peak of number 318 in 2004 and now ranks number 478 in 2025.