Kaius

Kaius was the #1,028 boys' name in the US in 2025 (216 babies), and #1,197 in England & Wales and #916 in Canada.

Kaius as a boy’s name

  • US
  • England & Wales
  • Scotland
  • Ireland
  • Canada
Kaius as a boy’s name, US, England & Wales, Scotland, Ireland, CanadaBabies per 1,000 in the published list, 1880–2025, for US, England & Wales, Scotland, Ireland, Canada. Gaps mark years with too few babies to be published.00.060.130.190.2518801900192019401960198020002020CanadaUSEngland & Wales
Kaius as a boy’s name, US, England & Wales, Scotland, Ireland, CanadaBabies per 1,000 in the published list, 1880–2025, for US, England & Wales, Scotland, Ireland, Canada. Gaps mark years with too few babies to be published.00.060.130.190.251880192019602000
Babies per 1,000 of the same sex in each published list. Breaks in a line are years with too few babies to be published.
Show the numbers
YearUSEngland & WalesScotlandIrelandCanada
2025#1,028 (216)#1,197 (24)——#916 (28)
2024#1,135 (186)#1,235 (22)——#927 (27)
2023#1,118 (189)#1,272 (21)#728 (3)—#738 (34)
2022#1,163 (177)#1,029 (28)——#944 (25)
2021#1,131 (180)#1,290 (20)—#631 (4)#833 (30)
2020#1,023 (202)#1,273 (20)——#967 (23)
2019#1,152 (169)#1,587 (15)——#941 (24)
2018#1,498 (115)#1,455 (17)——#910 (25)
2017#1,681 (94)#1,546 (16)——#971 (23)
2016#1,491 (114)#1,903 (12)——#1,234 (16)
2015#1,502 (110)#1,442 (17)——#1,164 (17)
2014#1,766 (85)#1,935 (11)——#747 (32)
2013#2,623 (45)#3,822 (4)——#2,305 (6)
2012#3,231 (34)#3,416 (5)——#1,655 (10)
2011#3,792 (27)#2,613 (7)——#1,467 (12)

The tide so far

  • Peaked in the US in 2025 at #1,028.
  • Holding steady over the last five years.
  • First recorded in the US in 2005.

How common is it?

about 1 in 7,900 baby boys in the published US list for 2025.

In a group of 1,000 children born that year, you would expect to meet fewer than 1. How we work this out.

How common, country by country

WhereSexLatest yearShareVerdict
USBoys2025about 1 in 7,900uncommon
England & WalesBoys2025about 1 in 11,000rare
CanadaBoys2025about 1 in 5,700uncommon

Next year

On its recent trend, Kaius is likely to hold steady in the US in 2026: about 1 in 7,900 baby boys. Likely range 1 in 7,200 to 1 in 8,800.

Estimate, not an official figure. How we estimate.

Across the US

Kaius by state, 2025Alaska: fewer than 5 babiesAKMaine: fewer than 5 babiesMEWisconsin: #678WIVermont: fewer than 5 babiesVTNew Hampshire: fewer than 5 babiesNHWashington: #801WAIdaho: fewer than 5 babiesIDMontana: fewer than 5 babiesMTNorth Dakota: fewer than 5 babiesNDMinnesota: #807MNIllinois: #1,133ILMichigan: fewer than 5 babiesMINew York: #950NYMassachusetts: fewer than 5 babiesMAOregon: fewer than 5 babiesORNevada: fewer than 5 babiesNVWyoming: fewer than 5 babiesWYSouth Dakota: fewer than 5 babiesSDIowa: fewer than 5 babiesIAIndiana: #773INOhio: fewer than 5 babiesOHPennsylvania: #1,004PANew Jersey: fewer than 5 babiesNJConnecticut: fewer than 5 babiesCTRhode Island: fewer than 5 babiesRICalifornia: #1,085CAUtah: fewer than 5 babiesUTColorado: #849CONebraska: fewer than 5 babiesNEMissouri: #709MOKentucky: fewer than 5 babiesKYWest Virginia: fewer than 5 babiesWVVirginia: fewer than 5 babiesVAMaryland: #809MDDelaware: fewer than 5 babiesDEArizona: #781AZNew Mexico: fewer than 5 babiesNMKansas: fewer than 5 babiesKSArkansas: fewer than 5 babiesARTennessee: fewer than 5 babiesTNNorth Carolina: #718NCSouth Carolina: fewer than 5 babiesSCDistrict of Columbia: fewer than 5 babiesDCOklahoma: fewer than 5 babiesOKLouisiana: #672LAMississippi: fewer than 5 babiesMSAlabama: fewer than 5 babiesALGeorgia: #756GAHawaii: fewer than 5 babiesHITexas: #974TXFlorida: #1,056FL
Kaius (boys) rank in each state, 2025. Hatched states recorded fewer than 5 babies.
  • #1–10
  • #11–50
  • #51–100
  • #101–500
  • below #500

Across Canada

ProvinceYearRankBabies
Ontario2024#90712

Kaius (boys): rank in each province’s latest list. Only Quebec and Ontario publish full name lists; Ontario’s latest list is a year behind.

Spellings

Official statistics count each spelling separately, so we show them side by side rather than adding them up.

SpellingWhereSexLatest rankBabies
KaiusCanadaBoys#91628
KaiusEngland & WalesBoys#1,19724
KaiusIrelandBoys—too few
KaiusNorthern IrelandBoys—too few
KaiusScotlandBoys—too few
KaiusUSBoys#1,028216