Kaj
2 countries#12008 in United States, 2025Popularity across 2 countries
Each line is scaled to its own peak, so you can compare when Kaj was in fashion in each country, whatever the population size.
Country by country
🇺🇸 United States
515 births recorded 1956–2025 · currently #12008 · peaked in 2006 with 20 births
Most common in: California
Source: Social Security Administration, official birth-registration data
🏴🏴 England & Wales
45 births recorded 1996–2021 · currently #4789 · peaked in 1996 with 4 births
Source: Office for National Statistics, official birth-registration data
🇬🇧 United Kingdom
45 births recorded 1996–2021 · peaked in 1996 with 4 births (England & Wales + Scotland + Northern Ireland combined)
Source: ONS, National Records of Scotland & NISRA (combined), official birth-registration data
United States rank history
Kaj’s rank among boys’ names, most recent 20 years on record.
| Year | Rank | vs. prior yr |
|---|---|---|
| 2006 | #4520 | — |
| 2007 | #7094 | ↓2574 |
| 2008 | #5767 | ↑1327 |
| 2009 | #4748 | ↑1019 |
| 2010 | #5478 | ↓730 |
| 2011 | #4822 | ↑656 |
| 2012 | #5482 | ↓660 |
| 2013 | #6603 | ↓1121 |
| 2014 | #7562 | ↓959 |
| 2015 | #5746 | ↑1816 |
| 2016 | #7157 | ↓1411 |
| 2017 | #7546 | ↓389 |
| 2018 | #5320 | ↑2226 |
| 2019 | #8889 | ↓3569 |
| 2020 | #8739 | ↑150 |
| 2021 | #7587 | ↑1152 |
| 2022 | #10863 | ↓3276 |
| 2023 | #8921 | ↑1942 |
| 2024 | #5904 | ↑3017 |
| 2025 | #12008 | ↓6104 |
Frequently asked questions about Kaj
Is Kaj a popular name?
Yes — Kaj currently ranks #12008 among boys’ names in United States as of 2025, based on official birth records.
Is Kaj more common for boys or girls?
Kaj is recorded predominantly as a boys’ name in official United States birth data.
When was Kaj most popular?
Kaj peaked in 2006 in United States, with 20 recorded births that year.
Is Kaj rising or falling in popularity?
In United States, Kaj’s popularity is falling — its rank has slipped from #3942 in 1956 to #12008 in 2025.
How many babies have been named Kaj?
At least 560 babies have been recorded with the name Kaj across official birth statistics in 2 countries.
Is Kaj popular in more than one country?
Yes — Kaj appears in official birth records in 2 countries: United States, England & Wales.