Dillion

Dillion is a masculine name that appears to be a variant spelling of Dylan, with possible Irish and Welsh origins. The traditional Dylan comes from Welsh mythology, meaning 'son of the sea' or 'born from the ocean,' associated with a sea god in Welsh legends. The Dillion spelling gives the name a unique twist while maintaining the familiar sound. This variation became somewhat more visible in the late 20th and early 21st centuries, though it remains less common than Dylan. The name has a contemporary feel while retaining connections to ancient Celtic heritage. Parents might choose this spelling for its distinctive quality while still connecting to the melodious sound and rich mythological background of the traditional form.

Dillion is also given to girls.

Pronounced DIL-yun.

As of October 2026, Dillion ranked #5446 for boys in US births in 2025 and #13877 for girls in US births in 2023 SSA, peaked at #539 for boys in 1992.