Dillan

Dillan is a modern English variant of Dylan, a name rooted in Welsh, combining the elements dy, meaning great or flowing, and llanw, meaning tide or flow, giving an overall sense of sea or ocean. The name gained widespread popularity largely through the Welsh mythological figure Dylan ail Don, a figure associated with the sea in the Mabinogion. It rose further in cultural prominence during the twentieth century, influenced by figures such as the poet Dylan Thomas and musician Bob Dylan. Related forms include Dylan, Dilan, and Dylen.