Kaitlyn is a girl name family recorded 520,693 times in 18 countries since 1955. It ranks highest today in Northern Ireland (#132 in 2025). Its all-time peak was in Scotland in 1998, at 1,513.6 births per 100,000. Elsewhere it is mostly given as Caitlin (England & Wales, Scotland, New South Wales).
Popularity by country
Births per 100,000 newborns, all forms of the name combined.
Which form wins where
Births per 100,000 newborns for each form, in the selected country.
Rank in countries that publish top lists only
All forms of Kaitlyn
| Variants | Language | Total births | Country | Latest rank | Peak year | 10-year trend |
|---|---|---|---|---|---|---|
| Kaitlyn | English | 166,921 | 🇺🇸 United States | #799 | 2000 | ▼ 77 % |
| Kaitlyn | English | 7,940 | 🇨🇦 Ontario | #708 | 2000 | ▼ 85 % |
| Kaitlyn | English | 5,160 | 🏴 England & Wales | #1362 | 2006 | ▼ 79 % |
| Kaitlyn | English | 2,272 | 🇨🇦 Alberta | #445 | 2002 | ▼ 58 % |
| Kaitlyn | English | 2,255 | 🇨🇦 British Columbia | #457 | 2000 | ▼ 80 % |
| Kaitlyn | English | 953 | 🏴 Scotland | – | 2005 | – |
| Caitlin | English | 112,426 | 🇺🇸 United States | #2326 | 1988 | ▼ 82 % |
| Caitlin | English | 28,964 | 🏴 England & Wales | #1028 | 2001 | ▼ 88 % |
| Caitlin | English | 6,971 | 🏴 Scotland | #301 | 1999 | ▼ 73 % |
| Caitlin | English | 5,736 | 🇦🇺 New South Wales | – | 1998 | – |
| Caitlin | English | 5,091 | 🇨🇦 Ontario | #867 | 1988 | ▼ 53 % |
| Caitlin | English | 2,909 | 🇬🇧 Northern Ireland | #132 | 1999 | ▼ 64 % |
| Kaitlin | English | 57,430 | 🇺🇸 United States | #4067 | 1995 | ▼ 78 % |
| Kaitlin | English | 2,976 | 🏴 England & Wales | – | 2004 | – |
| Kaitlin | English | 2,968 | 🇨🇦 Ontario | – | 1988 | – |
| Kaitlin | English | 761 | 🇨🇦 British Columbia | – | 1993 | – |
| Kaitlin | English | 733 | 🇨🇦 Alberta | – | 1993 | – |
| Kaitlin | English | 604 | 🏴 Scotland | – | 1998 | – |
| Caitlyn | English | 52,637 | 🇺🇸 United States | #2485 | 1998 | ▼ 84 % |
| Caitlyn | English | 5,333 | 🏴 England & Wales | #1315 | 2005 | ▼ 80 % |
| Caitlyn | English | 2,025 | 🇨🇦 Ontario | #1410 | 2001 | ▼ 69 % |
| Caitlyn | English | 1,179 | 🏴 Scotland | – | 1998 | – |
| Caitlyn | English | 751 | 🇨🇦 British Columbia | – | 1990 | – |
| Caitlyn | English | 662 | 🇨🇦 Alberta | – | 2005 | – |
| Kaitlynn | English | 16,424 | 🇺🇸 United States | #3645 | 1999 | ▼ 83 % |
| Kaitlynn | English | 582 | 🇨🇦 Ontario | – | 2002 | – |
| Kaitlynn | English | 191 | 🇨🇦 Alberta | – | 1998 | – |
| Kaitlynn | English | 187 | 🇨🇦 British Columbia | – | 1995 | – |
| Kaitlynn | English | 145 | 🏴 England & Wales | – | 2010 | – |
| Kaitlynn | English | 12 | 🏴 Scotland | – | 2006 | – |
| Caitlynn | English | 4,947 | 🇺🇸 United States | #8860 | 1998 | ▼ 83 % |
| Caitlynn | English | 116 | 🇨🇦 Ontario | – | 1997 | – |
| Caitlynn | English | 44 | 🏴 England & Wales | – | 2004 | – |
| Caitlynn | English | 20 | 🇨🇦 British Columbia | – | 1998 | – |
| Caitlynn | English | 5 | 🇧🇪 Belgium | – | 2017 | – |
| Caitlynn | English | 5 | 🇨🇦 Alberta | – | 2008 | – |
| Kaytlin | English | 3,324 | 🇺🇸 United States | – | 1999 | – |
| Kaytlin | English | 123 | 🏴 England & Wales | – | 2002 | – |
| Kaytlin | English | 19 | 🇨🇦 Ontario | – | 1989 | – |
| Kaytlin | English | 10 | 🇨🇦 Alberta | – | 1999 | – |
| Kaytlyn | English | 2,722 | 🇺🇸 United States | #13208 | 1998 | ▼ 56 % |
| Kaytlyn | English | 37 | 🏴 England & Wales | – | 2003 | – |
| Kaytlyn | English | 21 | 🇨🇦 Ontario | – | 1991 | – |
| Kaytlyn | English | 10 | 🇨🇦 Alberta | – | 1992 | – |
| Kaytlyn | English | 5 | 🏴 Scotland | – | 2003 | – |
| Kaytlynn | English | 1,285 | 🇺🇸 United States | – | 2001 | – |
| Kaithlyn | English | 389 | 🇺🇸 United States | #13208 | 2002 | ▼ 40 % |
| Kaithlyn | English | 10 | 🇫🇷 France | – | 2004 | – |
| Kaithlyn | English | 5 | 🇧🇪 Belgium | – | 2006 | – |
How we grouped these names
- Kaitlyn ↔ Caitlin — spelling variant
- Kaitlyn ↔ Kaitlin — spelling variant
- Kaitlyn ↔ Caitlyn — spelling variant
- Kaitlyn ↔ Kaitlynn — spelling variant
- Kaitlyn ↔ Caitlynn — spelling variant
- Kaitlyn ↔ Kaytlin — spelling variant
- Kaitlyn ↔ Kaytlyn — spelling variant
- Kaitlyn ↔ Kaytlynn — spelling variant
- Kaitlyn ↔ Kaithlyn — spelling variant
Questions about Kaitlyn
How popular is the name Kaitlyn?
In 2025 it ranked #132 in Northern Ireland. Official registers record 520,693 births across 18 countries.
What is Kaitlyn in other languages?
Caitlin (English); Kaitlin (English); Caitlyn (English); Kaitlynn (English); Caitlynn (English); Kaytlin (English); Kaytlyn (English); Kaytlynn (English); Kaithlyn (English).
When was Kaitlyn most popular?
It peaked in Scotland in 1998, at 1,513.6 births per 100,000.
Is Kaitlyn a boy or a girl name?
In official birth registers, Kaitlyn is a girl name.