Cailynn
Meaning
"pure, clear"
Origin: Greek via Irish
Cultural Roots
Quick Stats
- Popularity Rank
- #5,150
- Total SSA Count
- 26
- Syllables
- 2
- Formality
- Moderate
- Nicknames
- Cai, Kay, Caillie
Baby Name Comparison — 2026
"pure, clear"
Origin: Greek via Irish
"the color gray"
Origin: Old English
Gray is more popular, ranked #1342 vs #5150 for Cailynn.
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?
Gray is more popular, ranked #1342 compared to Cailynn at #5150 in the United States.
Cailynn means "pure, clear" (Greek via Irish origin). Gray means "the color gray" (Old English origin).
Cailynn is primarily a girl name. Gray is primarily a boy name.