Boy or Girl

Is Kay a boy or girl name?

Kay is used for both, more often for girls in the US. In 2024, 38 girls and 14 boys were named Kay, so 73.1% were girls. Across 1880–2024, 96.2% of the 102,497 US babies named Kay were girls.

Boy rank, 2024
#6,303
Girl rank, 2024
#3,912
Babies named Kay since 1882
102,497
Most popular year
1942
3,719 babies
Babies named Kay each year in the US
Line chart of US births named Kay from 1882 to 2024, boys and girls. The table below has every value.01,0002,0003,0004,0001900192019401960198020002020

Boys and girls named Kay, by decade

DecadeBoysGirlsShare girls
1880s113173.8%
1890s1612288.4%
1900s3945292.1%
1910s2922,17388.2%
1920s7602,66577.8%
1930s1,30617,30193%
1940s72532,65497.8%
1950s32124,64598.7%
1960s16412,38898.7%
1970s642,51897.5%
1980s551,40996.2%
1990s4786994.9%
2000s1863597.2%
2010s4050492.6%
2020s5621779.5%
Every year
YearBoysBoy rankGirlsGirl rank
202414#6,30338#3,912
202313#6,71348#3,345
202210#8,04247#3,391
20219#8,51142#3,643
202010#7,80442#3,577
20197#10,29943#3,583
20186#11,48963#2,722
20178#9,28951#3,175
20165#13,23147#3,398
20158#9,16343#3,632
20146#11,43960#2,870
20130–51#3,204
20120–52#3,190
20110–47#3,432
20100–47#3,443
20090–41#3,836
20080–46#3,555
20070–66#2,768
20060–63#2,794
20055#12,40861#2,746
20047#9,46267#2,515
20036#10,25166#2,477
20020–79#2,129
20010–72#2,249
20000–74#2,163
19990–66#2,270
19985#10,48070#2,094
19970–74#1,954
19966#8,46967#2,074
19955#9,60282#1,768
19947#7,37388#1,695
19936#8,157100#1,557
19925#9,127104#1,511
19918#6,237104#1,503
19905#8,821114#1,393
19895#8,576117#1,329
19889#5,010141#1,105
19877#5,792118#1,218
19867#5,654129#1,123
19850–139#1,063
19846#5,981147#983
19830–150#975
19828#4,815151#982
19818#4,747164#916
19805#6,767153#969
19798#4,637156#944
19786#5,429155#916
19777#4,868195#775
19767#4,682191#758
19750–206#719
19749#3,705239#640
19735#5,482272#581
19726#4,719251#620
19718#3,803377#503
19708#3,677476#455
196910#2,964498#433
196810#2,827636#353
196710#2,692711#327
19669#2,882856#295
196517#1,9611,021#270
196418#1,9401,301#243
196315#2,1621,607#212
196220#1,8371,878#197
196126#1,5881,955#192
196029#1,5041,925#192
195926#1,5712,004#182
195825#1,5712,238#169
195737#1,2892,355#163
195627#1,5212,394#154
195536#1,2612,327#157
195436#1,2562,506#146
195333#1,3202,462#146
195235#1,2582,768#133
195134#1,2692,963#120
195032#1,2782,628#123
194946#1,0412,751#119
194842#1,1002,943#113
194759#9103,520#104
194644#1,0383,358#101
194551#8933,058#91
194469#7503,170#88
194398#6463,493#81
194296#6563,623#75
194196#6183,538#70
1940124#5223,200#77
1939123#5123,260#76
1938120#5323,114#81
1937129#5073,010#79
1936137#4832,408#98
1935150#4651,648#134
1934159#4481,430#143
1933135#483864#200
1932124#522658#238
1931124#521558#259
1930105#588351#358
192980#691218#448
192884#692223#463
1927102#623267#419
192677#727224#457
192567#811248#439
192477#768302#395
192385#704285#396
192263#868281#391
192160#905304#383
192065#839313#370
191940#1,093330#355
191858#877311#368
191740#1,053283#377
191646#944272#380
191531#1,172243#386
191425#1,175215#361
191320#1,159159#381
191217#1,154143#386
19119#1,238111#382
19106#1,510106#382
19090–83#402
19086#1,30075#418
19076#1,26653#493
19065#1,33742#547
19055#1,33549#485
19040–39#532
19035#1,21637#535
19025#1,23026#659
19010–22#694
19007#1,11126#714
18995#1,13623#654
18980–14#942
18975#1,14915#846
18960–13#927
18950–10#1,088
18946#1,02114#826
18930–16#751
18920–7#1,219
18910–5#1,424
18900–5#1,423
18890–7#1,077
18886#9896#1,212
18870–6#1,089
18860–6#1,037
18850–6#987
18840–0–
18830–0–
18825#1,0190–

Highest rank

As a boy name, Kay reached #448 in 1934. As a girl name, it reached #70 in 1941. Ranks count every name SSA published for that year and sex, so they go well past the top 1,000.

Names from the same era

These names were also most popular in the 1940s, with a similar number of babies. They can work as sibling or middle names that feel like they belong together.

Names spelled like Kay

Compare Kay with another nameTry Kay with your surnameTop names of 1942More names starting with K

Source: US Social Security Administration baby name data, 1880–2024. Counts are Social Security card applications for US births; SSA leaves out names given to fewer than 5 babies in a year. Updated 2026-10-05. How these numbers are made.