Meaning Also used as a girl's name, Dylan means 'son of the sea' or 'great flood.' Origin of Dylan Welsh +-100%Zoom level changed to 1 Popular Middle Names James, Michael, Alexander, Anthony, Joseph, Thomas, Matthew, Lee, Jose, Ray Pronunciation 🔊 Listen Dylan DIH-lahn Similar Names Dillion Dyllan Dyland Dilan Dycan Dillon Dylen Dillan Makai Kodi Year by Year Popularity of Dylan