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2025 data, released 8 May 2026

Kayce

Kayce was the 375th most popular name for boys in 2025, given to 843 babies. That is its highest rank since records began in 1880. Over the last ten years it has moved up 4,100 places. More babies were named Kayce in the 2020s than in any other decade.

Meaning Origin uncertain · American English, Irish

Say it KAY-see /ˈkeɪsi/

Rank in 2025
#375 boys, up 1,409 places since 2020
Babies in 2025
843boys
Girls and boys
10% girls, 90% boys2021–2025
Peak year
2025843 babies
Total since 1880
6,540babies recorded

What does the name Kayce mean?

Kayce is a spelling of Casey or Kacey. Used in small numbers for girls since the 1950s, it rose sharply for boys after 2018, which coincides with the character Kayce Dutton in the TV series Yellowstone. Casey is from the Irish surname Ó Cathasaigh, which Wiktionary glosses as "watchful", but the modern name is best treated as a respelling without a separate meaning.

How sure is this? Uncertain. A respelling; its ultimate source (Casey) has a probable meaning, but the modern use is media-driven.

Related names: Casey, Kacey, KC.

See also: American names.

Sources for this meaning

Kayce popularity since 1880

02505007501k 1900192019401960198020002020
GirlsBoys Babies per year, US, from Social Security records. Years with fewer than 5 babies show as zero.
YearRank (girls)Rank (boys)Babies (girls)Babies (boys)
2025#2,180#37585843
2020#5,095#1,7842585
2010#4,451#10,229337
2000#2,355—66—
1990#1,490#6,8101057
1980#1,776—62—
1970#4,892—11—
1960————
1950————
1940————
1930————
1920————
1910————
1900————
1890————
1880————

How popular is Kayce, counting every spelling?

Kayce is the most common spelling of a name family that ranked #374 for boys in 2025 once every spelling is counted together, compared with #375 for Kayce on its own. Together these spellings went to 900 boys in 2025.

SpellingBabies 2025Official rankBabies 2021–2025
Kayce843#3752,954
Kais32#3,554134
Cayce13#6,52165
Kayse——28

Spellings count together when they sound the same in American English and are used for the same sex; nicknames and forms that sound different (such as Theo and Theodore) are kept apart. How we group spellings.

How many kids will share the name Kayce?

843 of the 3,606,400 babies born in the US in 2025 were named Kayce (0.23 per 1,000 births). For a boy named Kayce born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 10 (of 430 pupils) would have a child named Kayce.

Chance of another Kayce in a class of 20under 1 in 50US, born 2025
Most likely inSouth Dakotaunder 1 in 50 (2024)
Least likely inNew Jerseyunder 1 in 50 (2024)

Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.

How old are people named Kayce?

About 3,300 people born in the US named Kayce are alive today, with a median age of 3; half are between 1 and 4. That makes Kayce a young name: most people with it are children.

0–910–1920–2930–3940–4950–5960–6970–7980–8990+
Estimated people alive in the US with the name, by age, mid-2026. The darker bar holds the median age.

Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.

Kayce by state

How common Kayce was among boys born in each state in 2021–2025. It is notably more common than nationally in Iowa (2.0×), Missouri (2.0×), West Virginia (2.0×), Nebraska (1.9×), Arkansas (1.9×). It is least common, relative to the national rate, in Massachusetts, New Jersey, Nevada.

Alaska: fewer than 5 a yearAK–Maine: 0.26 per 1,000 babiesME0.26Wisconsin: 0.46 per 1,000 babiesWI0.46Vermont: fewer than 5 a yearVT–New Hampshire: fewer than 5 a yearNH–Washington: 0.42 per 1,000 babiesWA0.42Idaho: 0.66 per 1,000 babiesID0.66Montana: 0.28 per 1,000 babiesMT0.28North Dakota: 0.29 per 1,000 babiesND0.29Minnesota: 0.44 per 1,000 babiesMN0.44Illinois: 0.33 per 1,000 babiesIL0.33Michigan: 0.37 per 1,000 babiesMI0.37New York: 0.20 per 1,000 babiesNY0.20Massachusetts: 0.17 per 1,000 babiesMA0.17Oregon: 0.34 per 1,000 babiesOR0.34Nevada: 0.19 per 1,000 babiesNV0.19Wyoming: fewer than 5 a yearWY–South Dakota: 0.54 per 1,000 babiesSD0.54Iowa: 0.70 per 1,000 babiesIA0.70Indiana: 0.42 per 1,000 babiesIN0.42Ohio: 0.37 per 1,000 babiesOH0.37Pennsylvania: 0.45 per 1,000 babiesPA0.45New Jersey: 0.19 per 1,000 babiesNJ0.19Connecticut: 0.31 per 1,000 babiesCT0.31Rhode Island: fewer than 5 a yearRI–California: 0.22 per 1,000 babiesCA0.22Utah: 0.57 per 1,000 babiesUT0.57Colorado: 0.40 per 1,000 babiesCO0.40Nebraska: 0.67 per 1,000 babiesNE0.67Missouri: 0.69 per 1,000 babiesMO0.69Kentucky: 0.59 per 1,000 babiesKY0.59West Virginia: 0.67 per 1,000 babiesWV0.67Virginia: 0.54 per 1,000 babiesVA0.54Maryland: 0.31 per 1,000 babiesMD0.31Delaware: fewer than 5 a yearDE–Arizona: 0.39 per 1,000 babiesAZ0.39New Mexico: 0.64 per 1,000 babiesNM0.64Kansas: 0.66 per 1,000 babiesKS0.66Arkansas: 0.66 per 1,000 babiesAR0.66Tennessee: 0.35 per 1,000 babiesTN0.35North Carolina: 0.42 per 1,000 babiesNC0.42South Carolina: 0.52 per 1,000 babiesSC0.52District of Columbia: fewer than 5 a yearDC–Oklahoma: 0.56 per 1,000 babiesOK0.56Louisiana: 0.61 per 1,000 babiesLA0.61Mississippi: 0.65 per 1,000 babiesMS0.65Alabama: 0.60 per 1,000 babiesAL0.60Georgia: 0.46 per 1,000 babiesGA0.46Hawaii: fewer than 5 a yearHI–Texas: 0.38 per 1,000 babiesTX0.38Florida: 0.27 per 1,000 babiesFL0.27
Babies per 1,000 of the same sex, Kayce, boys, 2021–2025. Darker means more common.

Names with a similar history

These names rose and fell in step with Kayce: their share of US boys followed the most similar curve since 1880. If you like Kayce, they share its era and feel.

Middle names for Kayce · Sibling names for Kayce

Questions about the name Kayce

What does Kayce mean?

The origin of Kayce is uncertain: a respelling; its ultimate source (Casey) has a probable meaning, but the modern use is media-driven.

How popular is the name Kayce?

Kayce was the 375th most popular name for boys in 2025, given to 843 babies. That is its highest rank since records began in 1880. Over the last ten years it has moved up 4,100 places. More babies were named Kayce in the 2020s than in any other decade.

Is Kayce a boy or girl name?

In 2021–2025, 10% girls, 90% boys given the name Kayce in the US.

Where is Kayce most popular?

In 2021–2025, Kayce was most common in Iowa (0.70 per 1,000 boys), followed by Missouri and West Virginia.