Caitlin
Meaning
"pure, clear"
Origin: Greek via Irish
Cultural Roots
Quick Stats
- Popularity Rank
- #1,686
- Total SSA Count
- 121
- Syllables
- 2
- Formality
- Moderate
- Nicknames
- Cait, Kate, Katie
Baby Name Comparison — 2026
"pure, clear"
Origin: Greek via Irish
"remnants of the lake"
Origin: Old English
Caitlin is more popular, ranked #1686 vs #1696 for Marlo.
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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Caitlin is more popular, ranked #1686 compared to Marlo at #1696 in the United States.
Caitlin means "pure, clear" (Greek via Irish origin). Marlo means "remnants of the lake" (Old English origin).
Caitlin is primarily a girl name. Marlo is primarily a boy name.