Keilyn
Meaning
"slender and fair"
Origin: Irish
Cultural Roots
Quick Stats
- Popularity Rank
- #3,405
- Total SSA Count
- 46
- Syllables
- 2
- Formality
- Casual
- Nicknames
- Kay, Kei
Baby Name Comparison — 2026
"slender and fair"
Origin: Irish
"divine gift"
Origin: Greek
Theodore is more popular, ranked #4 vs #3405 for Keilyn.
Historical US popularity rank — lower number means more popular.
Historical trend data not available for this comparison.
Names that pair well as siblings.
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Theodore is more popular, ranked #4 compared to Keilyn at #3405 in the United States.
Keilyn means "slender and fair" (Irish origin). Theodore means "divine gift" (Greek origin).
Keilyn is primarily a girl name. Theodore is primarily a boy name.