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2025 data, released 8 May 2026

Koby

Koby was the 2174th most popular name for boys in 2025, given to 66 babies. Its best year was 2000, when it ranked 533rd with 411 babies. Over the last ten years it has moved down 655 places. More babies were named Koby in the 2000s than in any other decade.

Meaning Not yet researched how we research meanings

Rank in 2025
#2,174 boys, down 578 places since 2020
Babies in 2025
66boys
Girls and boys
6% girls, 94% boys2021–2025
Peak year
2000411 babies
Total since 1880
6,135babies recorded

Koby popularity since 1880

0125250375500 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—#2,174—66
2020#12,864#1,5967102
2010—#1,273—137
2000#11,299#5338411
1990—#1,391—65
1980—#2,491—20
1970—#2,805—12
1960————
1950————
1940————
1930————
1920————
1910————
1900————
1890————
1880————

How popular is Koby, counting every spelling?

Koby is a spelling of Coby, a name family that ranked #1,185 for boys in 2025 once every spelling is counted together, compared with #2,174 for Koby on its own. Together these spellings went to 159 boys in 2025.

SpellingBabies 2025Official rankBabies 2021–2025
Coby84#1,874563
Koby66#2,174371

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 Koby?

66 of the 3,606,400 babies born in the US in 2025 were named Koby (0.02 per 1,000 births). For a boy named Koby 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 127 (of 430 pupils) would have a child named Koby.

Chance of another Koby in a class of 20under 1 in 50US, born 2025
Most likely inAlabamaunder 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 Koby?

About 5,900 people born in the US named Koby are alive today, with a median age of 24; half are between 16 and 28. That makes Koby mostly worn by children and young adults.

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.

Koby by state

How common Koby was among boys born in each state in 2021–2025. In 43 states fewer than five boys a year got the name, too few for SSA to publish, so those states show as zero.

Alaska: fewer than 5 a yearAK–Maine: fewer than 5 a yearME–Wisconsin: fewer than 5 a yearWI–Vermont: fewer than 5 a yearVT–New Hampshire: fewer than 5 a yearNH–Washington: fewer than 5 a yearWA–Idaho: fewer than 5 a yearID–Montana: fewer than 5 a yearMT–North Dakota: fewer than 5 a yearND–Minnesota: fewer than 5 a yearMN–Illinois: fewer than 5 a yearIL–Michigan: fewer than 5 a yearMI–New York: 0.04 per 1,000 babiesNY0.04Massachusetts: fewer than 5 a yearMA–Oregon: fewer than 5 a yearOR–Nevada: fewer than 5 a yearNV–Wyoming: fewer than 5 a yearWY–South Dakota: fewer than 5 a yearSD–Iowa: fewer than 5 a yearIA–Indiana: fewer than 5 a yearIN–Ohio: fewer than 5 a yearOH–Pennsylvania: fewer than 5 a yearPA–New Jersey: fewer than 5 a yearNJ–Connecticut: fewer than 5 a yearCT–Rhode Island: fewer than 5 a yearRI–California: 0.02 per 1,000 babiesCA0.02Utah: fewer than 5 a yearUT–Colorado: fewer than 5 a yearCO–Nebraska: fewer than 5 a yearNE–Missouri: fewer than 5 a yearMO–Kentucky: fewer than 5 a yearKY–West Virginia: fewer than 5 a yearWV–Virginia: fewer than 5 a yearVA–Maryland: fewer than 5 a yearMD–Delaware: fewer than 5 a yearDE–Arizona: fewer than 5 a yearAZ–New Mexico: fewer than 5 a yearNM–Kansas: fewer than 5 a yearKS–Arkansas: fewer than 5 a yearAR–Tennessee: 0.03 per 1,000 babiesTN0.03North Carolina: 0.02 per 1,000 babiesNC0.02South Carolina: fewer than 5 a yearSC–District of Columbia: fewer than 5 a yearDC–Oklahoma: fewer than 5 a yearOK–Louisiana: fewer than 5 a yearLA–Mississippi: fewer than 5 a yearMS–Alabama: 0.05 per 1,000 babiesAL0.05Georgia: 0.04 per 1,000 babiesGA0.04Hawaii: fewer than 5 a yearHI–Texas: 0.04 per 1,000 babiesTX0.04Florida: 0.02 per 1,000 babiesFL0.02
Babies per 1,000 of the same sex, Koby, boys, 2021–2025. Darker means more common.

Names with a similar history

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

Questions about the name Koby

How popular is the name Koby?

Koby was the 2174th most popular name for boys in 2025, given to 66 babies. Its best year was 2000, when it ranked 533rd with 411 babies. Over the last ten years it has moved down 655 places. More babies were named Koby in the 2000s than in any other decade.

Is Koby a boy or girl name?

In 2021–2025, 6% girls, 94% boys given the name Koby in the US.

Where is Koby most popular?

In 2021–2025, Koby was most common in Alabama (0.05 per 1,000 boys), followed by New York and Texas.