Cillian
Meaning
"strife, war"
Origin: Old Irish
Cultural Roots
Quick Stats
- Popularity Rank
- #464
- Total SSA Count
- 668
- Syllables
- 3
- Formality
- Moderate
- Nicknames
- Cill, Killy
Baby Name Comparison — 2026
"strife, war"
Origin: Old Irish
"little red one (from red hair)"
Origin: Irish Gaelic (ruadh + -án)
Rowen is more popular, ranked #446 vs #464 for Cillian.
Historical US popularity rank — lower number means more popular.
Historical trend data not available for this comparison.
Names that pair well as siblings.
Answer 3 quick questions and we'll help you decide.
1. Which style feels more like your family?
Rowen is more popular, ranked #446 compared to Cillian at #464 in the United States.
Cillian means "strife, war" (Old Irish origin). Rowen means "little red one (from red hair)" (Irish Gaelic (ruadh + -án) origin).
Cillian is primarily a boy name. Rowen is primarily a boy name.