Cathlyn
- US rank
- Unranked
- Syllables
- 2
- Peak
- #2,516 in 1953
0 babies were named Cathlyn in the US in 2025.
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US births per million girls, 1923–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Cathlyn you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- HistoryCathlyn first shows up in US birth records in 1923, the first year at least 5 babies got it. It has been in use for 102 years since.
- Best yearIts best year was 1953, when it reached #2,516.
About the name Cathlyn
Cathlyn is a girl name of Irish origin. It has 7 letters and 2 syllables, starting with C and ending in “-lyn”. US birth records list Cathlyn for girls from 1923 to 2024, in 46 of those 102 years. Its best year was 1953, when it ranked #2,516 among girl names. It hasn't been given to 5 or more US babies in a year since 2024, so today it's a genuinely rare choice.
Origin:Irish names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1920s | 0.6 | 1,707,317 girls |
| 1940s | 3.3 | 307,692 girls |
| 1950s | 5.5 | 182,149 girls |
| 1960s | 2.4 | 425,532 girls |
| 1970s | 1.8 | 571,429 girls |
| 1980s | 1.2 | 806,452 girls |
| 1990s | 2.9 | 344,828 girls |
| 2000s | 2.0 | 492,611 girls |
| 2010s | 0.3 | 3,571,429 girls |
| 2020s | 1.5 | 675,676 girls |
Other spellings of Cathlyn
More Irish girl names
- Girl name: Abigail · my father is joy
- Unisex name: Riley · rye clearing
- Girl name: Maeve · she who intoxicates
- Unisex name: Kennedy · helmeted head
- Unisex name: Rylee · rye clearing
- Unisex name: Sloane · raider
- Unisex name: Alani · orange tree
- Girl name: Everleigh · boar clearing
Questions about the name Cathlyn
What is the origin of the name Cathlyn?
Cathlyn has Irish roots in our records. Other Irish names include Abigail, Riley, Maeve.
Is Cathlyn a boy or girl name?
Cathlyn is a girl name.
How popular is the name Cathlyn?
Cathlyn is rare: fewer than 5 US girls got it in 2025, and it was last given to 5 or more in 2024. It peaked at #2,516 in 1953.