Kasai
#639 in 2025Boys' nameMeaning not yet documented
Kasai has been given to 1,083 babies in the U.S. since 1996. In 2025 it ranked #639 of 13,926 boys’ names in use. Its peak year was 2025, with 437 recorded.
Babies named Kasai, 2025
1 in 7,590
Kasai 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.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 Kasai?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 7,590
- 437 of 3,315,165 births
- Among boys only
- 1 in 3,910
- 0.03% of boys
- Rank, 2025
- #639
- of 13,926 boys’ names in use
- Coin-flip room size
- 5,259 kids
- Even odds of a second one
Where Kasai 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 5,259 children born in 2025 and it's an even bet that one of them is another Kasai. In a class of 30 the chance is Under 1%.
When Kasais were born
Half of everyone ever recorded as Kasai was born before 2023 — so the typical Kasai is around 2 today.
- Biggest decade
- 2020s
- 70.4% of all use
- Born in the last 25 years
- 98.1%
- A modern name
- Recorded since 1950
- 1,065
- People you could plausibly meet
2020s — 70.4% of all recorded uses (750).
Is Kasai 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
- +1,108
- Places climbed
- Rank vs 5 years ago
- +1,846
- Places climbed
- Rank vs 10 years ago
- +5,233
- Places climbed
- Births vs 10 years ago
- 29.13×
- More babies than then
- Share of its own peak
- 100.0%
- Peak was 2025 (437)
- Years since peak
- Peaking now
- At its all-time high
- Year-to-year steadiness
- Volatile
- 44.0% average annual change
Spellings of Kasai
Kasai is not the most common spelling — Kai is, with 28.5% against Kasai's 0.43%.
Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.
Where Kasai is used
Across 2016–2025, Kasai was most concentrated in Delaware — about 1 in 1,515 boys, against 1 in 21,182 across all states with data. It was least common in Arizona (1 in 100,000).
Most concentrated
- 1Delaware1 in 1,515
- 2Pennsylvania1 in 6,667
- 3New Jersey1 in 9,091
- 4Georgia1 in 12,500
- 5Mississippi1 in 14,286
- 6New York1 in 14,286
- 7Florida1 in 16,667
- 8Maryland1 in 16,667
Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings.
Kasai around the world
Where Kasai ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.
- England & Wales2020–2025#2,269in 2025
Popularity data from Office for National Statistics. ONS data under Open Government Licence v3.0.
Kasai by the numbers
The raw record for each sex the name is used for.
As a boy's name
Names similar to Kasai
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Kasai
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.