Elowyn is a modern spelling of Elowen, the Cornish word for "elm" or "elm tree", which became a given name in Cornwall in the 20th century. The -wyn ending gives it a Welsh, fairy-tale feel, and it fits the current taste for names like Evelyn and Eloise. Elowyn only entered the US top 1000 in 2022, has soared from number 2629 in 2015 to 299 in 2025 and is more popular each year.