Iylah is a modern American respelling of Isla and Ayla. Isla is Scottish and comes from the island of Islay, so it can be read as "island", while Ayla is a Hebrew name meaning "oak tree" and a Turkish name meaning "moonlight". In the United States Iylah climbed from number 8647 in 2015 to number 2547 in 2019 and reached number 2086 among girls' names in 2025, its best rank so far.