Dilan is the spelling of Dylan used in Spanish-, Turkish- and Kurdish-speaking communities. Dylan is Welsh, from the Mabinogion, where Dylan ail Don is a child of the sea, and is usually explained as "son of the sea" or "great tide". Dilan has been in the US top 1000 since 2019, peaked at number 662 in 2024 and ranks number 805 in 2025.