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Coby

#1,874 in 2025Boys' name

Diminutive of Jacob

Coby has been given to 9,865 babies in the U.S. since 1941. In 2025 it ranked #1,874 of 13,926 boys’ names in use. Its peak year was 2001, with 516 recorded.

Babies named Coby, 2025

1 in 39,500

Coby over time, 1880–2025

BoysGirls
020040060018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Coby: meaning, origin, and history

Diminutive of Jacob

Deeper origin not confirmed in the cited records

What Coby means

Coby is a diminutive of Jacob.

Meaning behind the documented name family

Coby is a diminutive of Jacob. Jacob has more than one origin or interpretation.

Origin, language, and formation

Coby is used in English.

Related names and everyday forms

Related names include Jacob.

American usage and historical context

In the United States, 9,484 boys were recorded with the name Coby between 1941 and 2025. Its highest annual count was 516 in 2001; its best national rank was #462 in 2001.

Over 5 years its rank fell, from #1,321 in 2020 to #1,874 in 2025. Over 10 years its rank fell, from #1,383 in 2015 to #1,874 in 2025.

In the United States, 381 girls were recorded with the name Coby between 1946 and 2021. Its highest annual count was 22 in 1974; its best national rank was #3,128 in 1974.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Coby?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 39,500
84 of 3,315,165 births
Among boys only
1 in 20,300
<0.01% of boys
Rank, 2025
#1,874
of 13,926 boys’ names in use
Coin-flip room size
27,357 kids
Even odds of a second one

Where Coby sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 5001%

Put another way: gather 27,357 children born in 2025 and it's an even bet that one of them is another Coby. In a class of 30 the chance is Under 1%.

When Cobys were born

Half of everyone ever recorded as Coby was born before 2001 — so the typical Coby is around 24 today.

Median birth year
2001
About 24 years old
Biggest decade
2000s
34.3% of all use
Born in the last 25 years
52.2%
A modern name
Recorded since 1950
9,457
People you could plausibly meet
Choose a decade

2000s — 34.3% of all recorded uses (3,252).

Is Coby rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
−299
Places dropped
Rank vs 5 years ago
−553
Places dropped
Rank vs 10 years ago
−491
Places dropped
Births vs 10 years ago
0.67×
Fewer babies than then
Share of its own peak
16.3%
Peak was 2001 (516)
Years since peak
24
Years
Year-to-year steadiness
Steady
9.6% average annual change
Best rank ever
#462
2001

Spellings of Coby

Coby is not the most common spelling — Roy is, with 17.3% against Coby's 0.40%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Coby is used

Across 2016–2025, Coby was most concentrated in Illinois — about 1 in 9,091 boys, against 1 in 18,434 across all states with data. It was least common in Minnesota (1 in 50,000).

211 per 100,000

Most concentrated

  1. 1Illinois1 in 9,091
  2. 2Georgia1 in 10,000
  3. 3New York1 in 10,000
  4. 4North Carolina1 in 14,286
  5. 5Tennessee1 in 14,286
  6. 6Wisconsin1 in 14,286
  7. 7New Jersey1 in 16,667
  8. 8Florida1 in 20,000

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings.

Coby around the world

Where Coby ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • England & Wales
    1996–2025
    #367
    in 2025
  • Scotland
    2002–2025
    #762
    in 2025
  • Northern Ireland
    2007–2025
    #314
    in 2025
  • Ireland
    2008–2025
    #829
    in 2025
  • Canada
    1991–2024
    #1,698
    in 2024
  • South Australia
    1969–2013
    #188
    in 2013

Popularity data from Office for National Statistics, National Records of Scotland, Northern Ireland Statistics and Research Agency, Central Statistics Office, Statistics Canada and Consumer and Business Services (South Australia). ONS, NRS, NISRA data under Open Government Licence v3.0. CSO, CBS SA data under CC BY 4.0. StatCan data under Statistics Canada Open Licence.

Notable people named Coby

People whose public names include Coby, backed by Wikidata given-name records and ordered by linked Wikimedia pages. The name may be a middle name.

People data from Wikidata (CC0). Fame is measured, not judged — the order reflects how widely each person is documented, not the U.S. birth records popularity this page is otherwise about.

Coby in other languages

Cross-language forms and variants of Coby. Linked forms have their own page here.

CobiCobieJacoba

Variant forms from Wikidata (CC0). Most are used mainly outside the United States; U.S. birth records statistics cover US usage only.

Coby by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025
#1,874
Trend vs 5 yrs ago
Down 553
Best rank ever
#462
2001
Peak year
2001
516 that year
First recorded
1941
Last recorded
2025
All-time count
9,484
Count in 2025
84

As a girl's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#3,128
1974
Peak year
1974
22 that year
First recorded
1946
Last recorded
2021
All-time count
381
Count in 2025
Under 5

Names similar to Coby

Matched on shared beginnings and endings, similar length, and comparable popularity.

KobyCobeTobyRobyCobiJacobyJakobyJobyCobeyCoburnCobieCobainBobyCobinCobenHobyCobeeCobraCobynCobaltCobbCobertObyCobbie

Names with a curve like Coby

Not spelling — timing. These names rose, peaked and faded in the same years as Coby, so they read as being from the same moment even when they look nothing alike.

OsvaldoAlexandroDonavanKeonMaximillianOctavioShamarQuintenGarrisonDevenJarenEstevan

Sibling names for Coby

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Coby

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