Rex

Rex was the #859 boys' name in the US in 2025 (281 babies), and #228 in England & Wales and #1,127 in Canada.

Rex as a boy’s name

  • US
  • England & Wales
  • Scotland
  • Northern Ireland
  • Ireland
  • Canada
Rex 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.00.511.5218801900192019401960198020002020England & WalesScotlandUSCanada
Rex 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.00.511.521880192019602000
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#859 (281)#228 (217)#647 (4)——#1,127 (22)
2024#785 (320)#216 (228)#382 (9)—#520 (6)#997 (25)
2023#721 (368)#197 (254)#366 (9)—#516 (6)#854 (28)
2022#696 (380)#165 (309)#312 (12)#352 (4)—#917 (26)
2021#698 (380)#142 (396)#244 (18)#374 (4)#552 (5)#1,109 (20)
2020#681 (377)#143 (392)#198 (22)#334 (4)#637 (4)#1,071 (20)
2019#651 (410)#157 (348)#258 (16)#365 (4)#764 (3)#770 (31)
2018#631 (421)#158 (355)#325 (11)#365 (4)#635 (4)#732 (34)
2017#607 (434)#165 (338)#383 (9)—#710 (3)#764 (32)
2016#631 (423)#173 (328)#401 (8)#421 (3)#601 (4)#971 (23)
2015#679 (374)#212 (266)#389 (8)—#699 (3)#827 (28)
2014#661 (389)#267 (181)#439 (7)——#954 (23)
2013#630 (391)#322 (131)—#398 (3)#711 (3)#1,068 (19)
2012#631 (385)#450 (88)——#718 (3)#996 (21)
2011#618 (386)#501 (72)#491 (5)——#818 (27)

The tide so far

  • Peaked in the US in 1951 at #170.
  • Falling over the last five years.
  • In the US records since the data begins in 1880.

How common is it?

about 1 in 6,100 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 6,100uncommon
England & WalesBoys2025about 1 in 1,300uncommon
ScotlandBoys2025about 1 in 4,900uncommon
CanadaBoys2025about 1 in 7,200uncommon

Next year

On its recent trend, Rex is likely to hold steady in the US in 2026: about 1 in 6,200 baby boys. Likely range 1 in 5,500 to 1 in 7,000.

Estimate, not an official figure. How we estimate.

Across the US

Rex by state, 2025Alaska: fewer than 5 babiesAKMaine: fewer than 5 babiesMEWisconsin: #618WIVermont: fewer than 5 babiesVTNew Hampshire: fewer than 5 babiesNHWashington: #684WAIdaho: fewer than 5 babiesIDMontana: fewer than 5 babiesMTNorth Dakota: fewer than 5 babiesNDMinnesota: #586MNIllinois: #935ILMichigan: #905MINew York: #1,410NYMassachusetts: 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: #579INOhio: #940OHPennsylvania: #1,231PANew Jersey: fewer than 5 babiesNJConnecticut: fewer than 5 babiesCTRhode Island: fewer than 5 babiesRICalifornia: #683CAUtah: #351UTColorado: #756CONebraska: fewer than 5 babiesNEMissouri: #709MOKentucky: #708KYWest Virginia: fewer than 5 babiesWVVirginia: #1,089VAMaryland: fewer than 5 babiesMDDelaware: fewer than 5 babiesDEArizona: #559AZNew Mexico: fewer than 5 babiesNMKansas: fewer than 5 babiesKSArkansas: fewer than 5 babiesARTennessee: #927TNNorth Carolina: #1,144NCSouth Carolina: #743SCDistrict of Columbia: fewer than 5 babiesDCOklahoma: #504OKLouisiana: #775LAMississippi: fewer than 5 babiesMSAlabama: #685ALGeorgia: fewer than 5 babiesGAHawaii: fewer than 5 babiesHITexas: #915TXFlorida: #846FL
Rex (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#1,2178

Rex (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
RexCanadaBoys#1,12722
RexEngland & WalesBoys#228217
RexIrelandBoys—too few
RexNorthern IrelandBoys—too few
RexScotlandBoys#6474
RexUSGirls—too few
RexUSBoys#859281