Killion

Killion is a rare masculine name with Irish Gaelic origins. It's believed to be a variant of Kilian (or Cillian), derived from the Gaelic 'ceallach' meaning 'war' or 'strife,' or possibly 'church' in some interpretations. The name carries a strong, distinctive sound and honors the legacy of Saint Kilian, a 7th-century Irish missionary. While not commonly used in mainstream naming circles, Killion offers families seeking an uncommon Irish name with historical roots an appealing alternative to more popular Celtic options. Its unique spelling with two 'l's sets it apart from the more traditional Kilian spelling while maintaining the same powerful essence and cultural connection.

Pronounced KIL-yun.

As of October 2026, Killion ranked #11403 in US births in 2025 SSA, peaked at #8524 in 2017.