Elwyn entered U.S. records in 1893, near the turn of the 20th century. Its popularity climbed over the following decades. In 1924, 104 babies received the name (ranked #629). Today it sits well outside the top 1,000 (around #7250), with roughly 16 babies named Elwyn each year. Elwyn's usage has held roughly steady recently. In total, around 3,318 babies have been registered with this name since 1880.