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
"spear strength, brave with the spear"
Origin: Germanic
Cillian is more popular, ranked #464 vs #563 for Garrett.
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?
Cillian is more popular, ranked #464 compared to Garrett at #563 in the United States.
Cillian means "strife, war" (Old Irish origin). Garrett means "spear strength, brave with the spear" (Germanic origin).
Cillian is primarily a boy name. Garrett is primarily a boy name.