Kaithlyn
- Gender
- Girl
- Say it
- KAYT-lin
- Origin
- Greek
- US rank, 2025
- #13,203 for girls
Kaithlyn is a girls' name of Greek origin, meaning “pure”. In 2025 it ranked 13,203rd for girls in the US (6 babies).
What does Kaithlyn mean?
Greek: spelling of Kaitlyn, from Irish Caitlín, a form of Catherine
“pure”
Caitlín is the Irish form of Catherine, a name long linked with Greek katharos 'pure'.
Is Kaithlyn a girl's or a boy's name?
Kaithlyn is a girls' name. In 2025, it was given to 6 girls in the US. Too few boys were given it to be listed.
How popular is Kaithlyn in the US?
- Rank in 2025
- #13,203among girls
- Babies in 2025
- 6about 1 in 270,000 girls
- Five-year trend
- Too rare to calltoo few babies to tell
- Same name in a class
- under 1%chance among 15 girls
In 2025, 6 girls in the US were named Kaithlyn, making it the 13,203rd most popular name for girls. Five years earlier, in 2020, it was 13,448th. Its busiest year was 2002, with 21 girls. It first appears in the records in 1985.
Half of all the girls named Kaithlyn in the US since 1880 were born between 2001 and 2013, the years shaded on the chart below.
In 2025, 813 girls in the US were given Kaithlyn or a name that sounds the same. With every name's spellings counted this way, that ranks #407, up from #13,203 for this spelling alone.
Kaithlyn in the US, year by year
| Year | Girls | Rank |
|---|---|---|
| 2025 | 6 | #13,203 |
| 2024 | 7 | #12,156 |
| 2023 | 8 | #11,164 |
| 2022 | 0 | – |
| 2021 | 6 | #13,459 |
| 2020 | 6 | #13,448 |
| 2019 | 6 | #13,793 |
| 2018 | 5 | #15,677 |
| 2017 | 10 | #9,939 |
| 2016 | 8 | #11,776 |
| 2015 | 11 | #9,476 |
| 2014 | 17 | #6,985 |
| 2013 | 14 | #8,131 |
| 2012 | 14 | #8,204 |
| 2011 | 10 | #10,370 |
| 2010 | 11 | #9,786 |
| 2009 | 20 | #6,541 |
| 2008 | 17 | #7,404 |
| 2007 | 16 | #7,729 |
| 2006 | 15 | #7,865 |
| 2005 | 18 | #6,523 |
| 2004 | 17 | #6,763 |
| 2003 | 21 | #5,581 |
| 2002 | 21 | #5,440 |
| 2001 | 14 | #7,311 |
| 2000 | 11 | #8,527 |
| 1999 | 0 | – |
| 1998 | 9 | #9,254 |
| 1997 | 6 | #12,065 |
| 1996 | 5 | #13,511 |
| 1995 | 9 | #8,761 |
| 1994 | 7 | #10,563 |
| 1993 | 6 | #11,773 |
| 1992 | 12 | #7,060 |
| 1991 | 0 | – |
| 1990 | 8 | #9,241 |
| 1989 | 0 | – |
| 1988 | 5 | #11,792 |
| 1987 | 0 | – |
| 1986 | 7 | #8,518 |
| 1985 | 6 | #9,304 |
Nicknames for Kaithlyn
- Kait
- Kate 46 girls in the UK in 2025
Names like Kaithlyn
Names given in the same years and the same naming tradition, with a similar sound.
Teagan Devyn Brynn Brooklyn Keegan Cassidy Kayden Kenley Brynlee Braelynn Ashlyn Eowyn
Other spellings of Kaithlyn
Kaitlyn Katelyn Caitlin Caitlyn Kaitlynn Kaitlin Caitlynn Kaytlyn
Names related to Kaithlyn
More Greek names
Luca Theodore Sophia George Theo Lucas Sofia Alexander Sebastian Penelope Phoebe Margot Luke Chloe Sophie Zoe
Sources
Figures from Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.
To cite this page: Nameling, “Kaithlyn: name meaning, origin and popularity”, https://www.nameling.co.uk/names/kaithlyn, updated 20 October 2026.