Kj
#7,017 in 2025Boys' nameMeaning not yet documented
Kj has been given to 229 babies in the U.S. since 1993. In 2025 it ranked #7,017 of 13,926 boys’ names in use. Its peak year was 2021, with 21 recorded.
Babies named Kj, 2025
1 in 276,000
Kj over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
How common is Kj?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 276,000
- 12 of 3,315,165 births
- Among boys only
- 1 in 142,000
- <0.01% of boys
- Rank, 2025
- #7,017
- of 13,926 boys’ names in use
- Coin-flip room size
- 191,493 kids
- Even odds of a second one
Where Kj sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 191,493 children born in 2025 and it's an even bet that one of them is another Kj. In a class of 30 the chance is Under 1%.
When Kjs were born
Half of everyone ever recorded as Kj was born before 2018 — so the typical Kj is around 7 today.
- Biggest decade
- 2010s
- 42.8% of all use
- Born in the last 25 years
- 94.3%
- A modern name
- Recorded since 1950
- 229
- People you could plausibly meet
2010s — 42.8% of all recorded uses (98).
Is Kj rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- −1,460
- Places dropped
- Rank vs 5 years ago
- +4,353
- Places climbed
- Rank vs 10 years ago
- +2,188
- Places climbed
- Births vs 10 years ago
- 1.50×
- More babies than then
- Share of its own peak
- 57.1%
- Peak was 2021 (21)
- Years since peak
- 4
- Years
- Year-to-year steadiness
- Volatile
- 54.6% average annual change
Kj by the numbers
The raw record for each sex the name is used for.
Names similar to Kj
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Kj
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.