Caelin
Primarily a girl's name of Irish origin with 430 recorded births. Also given to 334 boys.
Meaning & Origin
At 6 letters and two syllables, Caelin hits the middle ground most parents look for: long enough to feel complete, short enough for everyday use. It has been used as a girl's name in the U.S. since 1994, with 430 total recorded births.
Currently ranked #15666, Caelin is familiar enough that people will recognize it but not so common that your child shares it with three classmates.
In the most recent SSA release, Caelin ranks #15666 among U.S. girl names — distinctive enough to stand out.
Caelin is a girl's and boy's baby name of Irish origin, a variant of Caelinn or Caoilfhinn, meaning "slender and fair" or "pure and graceful" — from the Irish "caol" (slender) and "fionn" (fair, white). The anglicized spelling Caelin preserves the sound while making it accessible to non-Irish speakers.
Caelin has the delicate, lyrical quality of Irish Celtic names — a name that sounds like something whispered in a green valley, carrying the particular beauty of the Irish language in a form that travels across linguistic borders.
EtymologyShow more
The ending of a name often carries more etymological information than the beginning. Caelin's final sounds are smooth, flowing — a popular compound ending in American feminine naming. In English-language naming, many feminine names end on open vowels or soft consonants, creating a melodic, approachable quality. Caelin follows that feminine pattern.
Explore the ending-based name pages on this site to find names that share Caelin's suffix pattern — names with similar endings often share a style and era, even when they come from different linguistic backgrounds.
At a Glance
Popularity Over Time
Caelin was #5404 twenty years ago and has since drifted to #15666, but its charm endures.
Popularity by Decade
| Decade | Births | Trend |
|---|---|---|
| 2020s | 10 | ▼ |
| 2010s | 97 | ▼ |
| 2000s | 227 | ▲ |
| 1990s | 96 | — |
The Story of Caelin
A Gen Z name
Peaking in 2003, Caelin is a name that defines a generation. Girls named Caelin are most likely born between 1994 and 2013.
How rare is Caelin?
Only about 1 in every 720,000 babies born in 2024 was named Caelin — a truly uncommon choice.
The journey through the decades
First appeared in the records in 1994, peaked in the 2000s with 227 births that decade, and has since become a rare, vintage choice.
Caelin by the numbers
- Would fill 9 school buses
- Meeting one Caelin per day would take 1.2 years
Year-by-Year Data
View complete yearly data(27 years, 1994–2024)
| Year | Births | Rank |
|---|---|---|
| 2024 | 5 | #15666 |
| 2021 | 5 | #15684 |
| 2019 | 5 | #15973 |
| 2017 | 9 | #10848 |
| 2016 | 9 | #11048 |
| 2015 | 11 | #9592 |
| 2014 | 10 | #10281 |
| 2013 | 8 | #12195 |
| 2012 | 14 | #8298 |
| 2011 | 14 | #8281 |
| 2010 | 17 | #7276 |
| 2009 | 25 | #5570 |
| 2008 | 14 | #8614 |
| 2007 | 28 | #5121 |
| 2006 | 24 | #5580 |
| 2005 | 21 | #5841 |
| 2004 | 23 | #5404 |
| 2003 | 29 | #4442 |
| 2002 | 19 | #5938 |
| 2001 | 24 | #4861 |
Source: U.S. Social Security Administration. Showing years with 5+ recorded births.
Caelin as a Boy's Name
Caelin is a true unisex name. As a boy's name, it has 334 recorded births since 1992.
Frequently Asked Questions
Is Caelin a boy's or girl's name?
When was Caelin most popular?
How popular is the name Caelin?
Can Caelin be used for both boys and girls?
Explore More
Data source: U.S. Social Security Administration, 1994–2024