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Kairo

#226 in 2025Boys' name

Variant of Cairo

Kairo has been given to 11,519 babies in the U.S. since 1995. In 2025 it ranked #226 of 13,926 boys’ names in use. Its peak year was 2025, with 1,577 recorded.

Babies named Kairo, 2025

1 in 2,100

Kairo over time, 1880–2025

BoysGirls
05001K1.5K2K18801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Kairo: meaning, origin, and history

Variant of Cairo

Deeper origin not confirmed in the cited records

What Kairo means

Kairo is a variant of Cairo.

Related names and everyday forms

Related names include Cairo.

American usage and historical context

In the United States, 11,224 boys were recorded with the name Kairo between 1995 and 2025. Its highest annual count was 1,577 in 2025; its best national rank was #226 in 2025.

Over 5 years its rank rose, from #280 in 2020 to #226 in 2025. Over 10 years its rank rose, from #1,819 in 2015 to #226 in 2025.

In the United States, 295 girls were recorded with the name Kairo between 2015 and 2025. Its highest annual count was 48 in 2019; its best national rank was #3,301 in 2019.

Over 5 years its rank rose, from #5,232 in 2020 to #4,219 in 2025. Over 10 years its rank rose, from #17,742 in 2015 to #4,219 in 2025.

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.

How common is Kairo?

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

Among all babies, 2025
1 in 2,100
1,577 of 3,315,165 births
Among boys only
1 in 1,080
0.09% of boys
Rank, 2025
#226
of 13,926 boys’ names in use
Coin-flip room size
1,458 kids
Even odds of a second one

Where Kairo 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 301%
Grade of 1005%
School of 50021%

Put another way: gather 1,458 children born in 2025 and it's an even bet that one of them is another Kairo. In a class of 30 the chance is 1%.

When Kairos were born

Half of everyone ever recorded as Kairo was born before 2022 — so the typical Kairo is around 3 today.

Median birth year
2022
About 3 years old
Biggest decade
2020s
75.5% of all use
Born in the last 25 years
99.4%
A modern name
Recorded since 1950
11,224
People you could plausibly meet
Choose a decade

2020s — 75.5% of all recorded uses (8,477).

Is Kairo 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
+12
Places climbed
Rank vs 5 years ago
+54
Places climbed
Rank vs 10 years ago
+1,593
Places climbed
Births vs 10 years ago
19.23×
More babies than then
Share of its own peak
100.0%
Peak was 2025 (1,577)
Years since peak
Peaking now
At its all-time high
Year-to-year steadiness
Volatile
41.7% average annual change
Best rank ever
#226
2025

Spellings of Kairo

Kairo is not the most common spelling — Karl is, with 25.3% against Kairo's 2.8%.

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 Kairo is used

Across 2016–2025, Kairo was most concentrated in District of Columbia — about 1 in 395 boys, against 1 in 1,460 across all states with data. It was least common in West Virginia (1 in 14,286).

7253 per 100,000

Most concentrated

  1. 1District of Columbia1 in 395
  2. 2Delaware1 in 503
  3. 3Maryland1 in 645
  4. 4Georgia1 in 694
  5. 5Connecticut1 in 763
  6. 6South Carolina1 in 794
  7. 7New York1 in 917
  8. 8Louisiana1 in 935

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.

Geographically, Kairo is one of the more regionally concentrated names in the country — more concentrated than 82% of the names used widely enough to compare. See the most regional names

Kairo around the world

Where Kairo 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
    #249
    in 2025
  • Scotland
    2015–2025
    #367
    in 2025
  • Northern Ireland
    2022–2025
    #344
    in 2025
  • Ireland
    2020–2025
    #468
    in 2025
  • France
    2021–2025
    #6,171
    in 2025
  • Canada
    2007–2024
    #460
    in 2024
  • South Australia
    2005–2006
    #657
    in 2006

Popularity data from Office for National Statistics, National Records of Scotland, Northern Ireland Statistics and Research Agency, Central Statistics Office, Institut national de la statistique et des études économiques, 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. INSEE data under Licence Ouverte / Etalab 2.0. StatCan data under Statistics Canada Open Licence.

Kairo by the numbers

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

As a boy's name

Rank in 2025
#226
Trend vs 5 yrs ago
Up 54
Best rank ever
#226
2025
Peak year
2025
1,577 that year
First recorded
1995
Last recorded
2025
All-time count
11,224
Count in 2025
1,577

As a girl's name

Rank in 2025
#4,219
Trend vs 5 yrs ago
Up 1,013
Best rank ever
#3,301
2019
Peak year
2019
48 that year
First recorded
2015
Last recorded
2025
All-time count
295
Count in 2025
34

Names similar to Kairo

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

KaineKaisonJairoCairoKaiusKaiserKainKaizenKaidynKainoaKaisenKaitoKaidenRamiroKaizerKainenKailoKairiKaidanKaigeKailenKainanKaisynKai

Names with a curve like Kairo

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

JazielCallanBakerColsonCrewZyaireKoaShepherdEithanOnyxStetsonWells

Sibling names for Kairo

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 Kairo

Top names of 2025, Kairo's peak yearThe 2020s in fullOther names that peaked in 2025Boys' names starting with K