Koby
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Meaning
variant of Kobe/Jacob, "supplanter"
How popular is Koby around the world?
In the United States, 503 babies were named Koby between 2020 and 2025. In South Australia, 6 boys were registered as Koby in 2017.
Koby is on the official records of the United States, South Australia, Ireland, England and Wales, Scotland, Canada and Austria.
United States
1 in 43,000
In the United States, 503 babies were named Koby between 2020 and 2025.
Shape drawn from US Social Security baby-name records. Koby peaked in the 1990s and the 2020s in nearly equal measure.
Births with a Social Security record. Source: U.S. Social Security Administration
South Australia
1 in 3,1002017
In South Australia, 6 boys were registered as Koby in 2017.
share of that year’s name registrations
Births registered in South Australia (not all of Australia) by first name and year of registration, 1944–2017, from the state’s Births, Deaths and Marriages registry, which publishes every name down to a single birth in capitals; a spelling its export repeats inside a year is counted once, and from 2018 only a top 100 is published, so the series ends at 2017. Source: Consumer and Business Services (South Australia), popular baby names
Ireland
1 in 9,000
In Ireland, 6 boys named Koby were born in 2025, the 509th most common name among boys that year.
share of that year’s name registrations
Exact registered spellings from Irish vital statistics; any name under 3 in a year is withheld at source, and accented spellings (fadas) are recorded reliably only from 2018. Source: Central Statistics Office (Ireland), Irish babies' names
England and Wales
1 in 9,800
In England and Wales, 60 boys named Koby were born in 2025, the 621st most common name among boys that year.
share of that year’s name registrations
Birth registrations in England and Wales (not the whole UK); exact spellings are counted separately, and any spelling under 3 in a year is withheld at source. Source: Office for National Statistics, baby names in England and Wales
Scotland
1 in 11,000
In Scotland, 4 boys named Koby were registered in 2024, the 619th most common name among boys that year.
The count never rose above 9 in a year, too few to chart.
Births registered in Scotland; different spellings count separately but accents are merged at source, and any spelling under 3 in total is suppressed. Source: National Records of Scotland, babies' first names
Canada
1 in 23,000
In Canada, 16 boys named Koby were born in 2024, ranked 1,390th among boys that year.
share of that year’s name registrations
First given names from provincial and territorial vital statistics across Canada; any name-sex-year under 5 is excluded at source, and small Quebec counts carry a randomized adjustment made at source. Shares divide by Statistics Canada’s count of live births for the year; the 2024 count is preliminary. Source: Statistics Canada, first names at birth (table 17-10-0147-01)
Austria
1 in 76,000
In Austria, 1 boy named Koby was born in 2025, ranked 1,842nd among boys that year, spellings that differ only by special characters counted together.
The count never rose above 1 in a year, too few to chart.
Live births in Austria by year of birth, 1984–2025, from Statistik Austria’s first-name statistics; spellings that differ only by special characters are counted together (umlauts stay apart), every name down to a single birth is published, and the count covers babies with Austrian citizenship only until 2009, every baby from 2010, and from 2015 also births abroad to mothers living in Austria. Shares divide by Statistik Austria’s count of live births from 2010, and before that by the file’s own total for the year. Source: Statistik Austria - data.statistik.gv.at (OGDEXT_VORNAMEN_1, updated 2026-07-09)
New South Wales
outside the top 100
Koby is not in the 2025 top 100 for New South Wales.
share of that year’s top-100 registrations
New South Wales (not all of Australia) publishes only each year’s 100 most popular names per sex, so a missing year means below that top 100, not rare. Source: NSW Registry of Births, Deaths and Marriages, popular baby names
New Zealand
last on record 2023
Koby is not on the 2025 record for New Zealand, where names under 10 in a year are excluded at source.
share of that year’s name registrations
First given names from New Zealand birth registrations, grouped by registration year; any name under 10 in a year is excluded at source. Shares divide by Stats NZ’s count of births registered to mothers living in New Zealand, under 1% below the registry’s own count. Source: Department of Internal Affairs (New Zealand), baby name popularity over time
Not on the record in Spain, Mexico City, Argentina, Puerto Rico and Poland: those registries withhold small counts, so rare uses may sit below their floors.
Not on the Chile record: nametree keeps spellings that reached 5 registrations in some year, so rarer uses are not shown. Not on the Montevideo record for 1940 to 2011: that registry withholds nothing, so this spelling was not given there in those years. Not on the France record: nametree keeps spellings that reached 20 births in some year, so rarer uses are not shown. Not on Norway’s list: Statistics Norway lists only first names carried by 200 or more living people, so rarer names are not shown.
When you meet Koby
Most people given the name Koby in the United States are teenagers or young adults today.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
Keep exploring
The Koby deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Koby truly comes from, how it traveled, and what a century of records reveals. If you have grown a tree on nametree, it also considers how Koby fits with your family’s names and surname.
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