NameTides

Colby

Colby was the #615 boys' name in the US in 2025 (455 babies), and #224 in England & Wales and #533 in Canada.

Colby as a boy’s name

  • US
  • England & Wales
  • Scotland
  • Northern Ireland
  • Ireland
  • Canada
Colby as a boy’s name, US, England & Wales, Scotland, Northern Ireland, Ireland, CanadaBabies per 1,000 in the published list, 1880–2025, for US, England & Wales, Scotland, Northern Ireland, Ireland, Canada. Gaps mark years with too few babies to be published.01.252.53.75518801900192019401960198020002020Northern IrelandEngland & WalesScotlandCanadaUSIreland
Colby as a boy’s name, US, England & Wales, Scotland, Northern Ireland, Ireland, CanadaBabies per 1,000 in the published list, 1880–2025, for US, England & Wales, Scotland, Northern Ireland, Ireland, Canada. Gaps mark years with too few babies to be published.01.252.53.7551880192019602000
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 & WalesScotlandNorthern IrelandIrelandCanada
2025#615 (455)#224 (222)#278 (13)#199 (10)#577 (5)#533 (55)
2024#583 (490)#222 (220)#165 (27)#216 (9)#785 (3)#495 (59)
2023#607 (467)#222 (219)#185 (24)#232 (8)—#405 (72)
2022#600 (469)#290 (155)#181 (26)#192 (11)#657 (4)#439 (65)
2021#651 (420)#333 (136)#297 (13)#266 (7)—#436 (68)
2020#618 (439)#288 (159)#213 (20)#252 (7)#741 (3)#456 (63)
2019#612 (447)#308 (157)#250 (17)—#646 (4)#493 (57)
2018#597 (459)#414 (102)#253 (16)—#749 (3)#444 (64)
2017#584 (465)#581 (65)#318 (12)#415 (3)—#550 (49)
2016#529 (558)#631 (56)#532 (5)—#713 (3)#398 (76)
2015#456 (665)#482 (82)#359 (9)#314 (5)—#347 (90)
2014#427 (717)#438 (92)#276 (15)——#306 (110)
2013#400 (746)#432 (94)#316 (12)——#253 (132)
2012#341 (909)#513 (73)#337 (10)——#239 (147)
2011#314 (1,026)#626 (54)#421 (7)——#208 (167)

The tide so far

  • Peaked in the US in 2001 at #99.
  • Holding steady over the last five years.
  • First recorded in the US in 1888.
  • In 2025, 12% of US babies named Colby were girls.

How common is it?

about 1 in 3,800 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 3,800uncommon
England & WalesBoys2025about 1 in 1,200uncommon
ScotlandBoys2025about 1 in 1,500uncommon
Northern IrelandBoys2025about 1 in 830common
IrelandBoys2025about 1 in 4,700uncommon
CanadaBoys2025about 1 in 2,900uncommon

Next year

On its recent trend, Colby is likely to keep rising in the US in 2026: about 1 in 3,500 baby boys. Likely range 1 in 3,100 to 1 in 3,900.

Estimate, not an official figure. How we estimate.

Across the US

Colby by state, 2025Alaska: fewer than 5 babiesAKMaine: fewer than 5 babiesMEWisconsin: #393WIVermont: fewer than 5 babiesVTNew Hampshire: #230NHWashington: #737WAIdaho: fewer than 5 babiesIDMontana: fewer than 5 babiesMTNorth Dakota: fewer than 5 babiesNDMinnesota: #586MNIllinois: #805ILMichigan: #679MINew York: #1,055NYMassachusetts: #413MAOregon: #474ORNevada: fewer than 5 babiesNVWyoming: fewer than 5 babiesWYSouth Dakota: fewer than 5 babiesSDIowa: #399IAIndiana: #452INOhio: #595OHPennsylvania: #397PANew Jersey: #829NJConnecticut: #382CTRhode Island: fewer than 5 babiesRICalifornia: #884CAUtah: #703UTColorado: #571CONebraska: #377NEMissouri: #392MOKentucky: #404KYWest Virginia: #227WVVirginia: #435VAMaryland: #571MDDelaware: fewer than 5 babiesDEArizona: #781AZNew Mexico: fewer than 5 babiesNMKansas: #324KSArkansas: #555ARTennessee: #672TNNorth Carolina: #475NCSouth Carolina: #501SCDistrict of Columbia: fewer than 5 babiesDCOklahoma: #698OKLouisiana: #672LAMississippi: #415MSAlabama: #573ALGeorgia: #594GAHawaii: fewer than 5 babiesHITexas: #876TXFlorida: #809FL
Colby (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#47826

Colby (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
ColbyCanadaGirls#3,0446
ColbyCanadaBoys#53355
ColbyEngland & WalesGirls—too few
ColbyEngland & WalesBoys#224222
ColbyIrelandBoys#5775
ColbyNorthern IrelandGirls—too few
ColbyNorthern IrelandBoys#19910
ColbyScotlandGirls—too few
ColbyScotlandBoys#27813
ColbyUSGirls#2,82260
ColbyUSBoys#615455