Elis is of Welsh origin, meaning "pledge". It was originally used as a boy's name but has now become popular for girls as well. The name is pronounced /ˈiːlɪs/.
The name Elis has seen a significant increase in popularity over the past century, with a notable surge in recent years. From just five births recorded in 1911 and again in 1924, the name peaked at 18 births in 2021. The total number of births with the name Elis since 1911 is 260.