Spelling comparison
Kayson vs Kaison
2025 US records for these exact spellings: Kayson 1,314 and Kaison 562. Kayson’s share of that pair is 70.0%. The multiple is about 2.3 times the published count of Kaison.
US national data through 2025 · Source retrieved
Data updated
The two spellings share a Little Names spelling key. Kayson profile · Kaison profile
Kayson and Kaison name the same child-name in two spellings. The tables below never merge those rows into a single total. Kayson and Kaison use the same number of letters, so the contrast is which letters appear. Kayson uses “y” where Kaison uses “i”, between “Ka” and “son”.
From 1990 through 2025, every year in which both spellings were published had the same leader on the combined count. There is no crossover in that overlap.
Kayson is first published in these national files in 1982, and Kaison in 1989. Kayson’s larger 2025 category is male. Kaison’s larger 2025 category is male. Kayson led 5 decades among decades in which both spellings have a published total.
Inside 2016–2025, the widest combined gap was 752 records in 2025, and the closest year was 2019 (a gap of 465). Of the combined 2025 records for this pair (1,876), Kayson is 70.0% and Kaison is 30.0%.
2016–2025, count and rank
2016 belongs to Kayson. Kayson had 13 female records (rank #8,634) and 858 male records (rank #380); Kaison had 391 male records (rank #663). The gap that year was 480 records. For 2017, compare the categories separately: Kayson had 15 female records (rank #7,647) and 970 male records (rank #349); Kaison had 6 female records (rank #14,973) and 468 male records (rank #581). Kayson led 2017 by 511 published records (985 to 474), and the smaller spelling is Kaison. Kayson was the higher published spelling in 2018, with 13 female records (rank #8,369) and 971 male records (rank #344) against 485 male records (rank #569) for Kaison. The 2019 national file shows Kayson led 2019 by 465 published records (1,042 to 577). Read as exact spellings: Kayson had 14 female records (rank #7,941) and 1,028 male records (rank #324); Kaison had 577 male records (rank #496). 2020: Kayson led 2020 by 517 published records (1,172 to 655). Kayson and Kaison stay separate rows; 1,172 and 655 are not a combined baby-name total. In 2021, Kayson had 12 female records (rank #8,722) and 1,222 male records (rank #283); Kaison had 642 male records (rank #465). Kayson led 2021 by 592 published records (1,234 to 642). 2022 belongs to Kayson. Kayson had 7 female records (rank #12,903) and 1,238 male records (rank #278); Kaison had 583 male records (rank #510). The gap that year was 662 records. For 2023, compare the categories separately: Kayson had 15 female records (rank #7,451) and 1,224 male records (rank #278); Kaison had 604 male records (rank #502). Kayson led 2023 by 635 published records (1,239 to 604), and the smaller spelling is Kaison. Kayson was the higher published spelling in 2024, with 9 female records (rank #10,686) and 1,154 male records (rank #291) against 595 male records (rank #514) for Kaison. The 2025 national file shows Kayson led 2025 by 752 published records (1,314 to 562). Read as exact spellings: Kayson had 9 female records (rank #10,500) and 1,305 male records (rank #264); Kaison had 5 female records (rank #16,033) and 557 male records (rank #540).
| Year | Kayson female count | Kayson female rank | Kayson male count | Kayson male rank | Kaison female count | Kaison female rank | Kaison male count | Kaison male rank |
|---|---|---|---|---|---|---|---|---|
| 2016 | 13 | 8,634 | 858 | 380 | — | — | 391 | 663 |
| 2017 | 15 | 7,647 | 970 | 349 | 6 | 14,973 | 468 | 581 |
| 2018 | 13 | 8,369 | 971 | 344 | — | — | 485 | 569 |
| 2019 | 14 | 7,941 | 1,028 | 324 | — | — | 577 | 496 |
| 2020 | 10 | 9,911 | 1,162 | 294 | — | — | 655 | 454 |
| 2021 | 12 | 8,722 | 1,222 | 283 | — | — | 642 | 465 |
| 2022 | 7 | 12,903 | 1,238 | 278 | — | — | 583 | 510 |
| 2023 | 15 | 7,451 | 1,224 | 278 | — | — | 604 | 502 |
| 2024 | 9 | 10,686 | 1,154 | 291 | — | — | 595 | 514 |
| 2025 | 9 | 10,500 | 1,305 | 264 | 5 | 16,033 | 557 | 540 |
Combined counts, 1880–2025
Each line adds the published female and male counts for that spelling. A gap is a year with no published observation, not a zero. Kayson is the warm line and Kaison is the cool line.
Which spelling led each decade
Kayson was the 1980s leader, 15 published records against 5 for Kaison. The 1990s files give 122 published records to Kayson and 49 to Kaison, so Kayson led the decade. Kayson was the 2000s leader, 1,005 published records against 438 for Kaison. The 2010s files give 6,978 published records to Kayson and 3,065 to Kaison, so Kayson led the decade. Kayson was the 2020s leader, 7,367 published records against 3,641 for Kaison.
Top states in 2025
Kayson’s highest 2025 state counts, combining published female and male rows where both exist, are Texas (122), Florida (81), Georgia (80), California (60), Tennessee (57). Kaison’s highest 2025 state counts, combining published female and male rows where both exist, are Texas (60), Florida (49), Georgia (44), California (40), Ohio (30). Texas, Florida, Georgia are in the top states for both spellings. A state can rank differently for each spelling because the counts are not merged.