Total births
252
Boys' name · since 2001
Caillou
Caillou has 252 recorded births since 2001 in federal Social Security data, most heavily in 2001 -- full year-by-year trend, decade aggregates, and state rankings follow.
- 252
- total births
- 2001–2019
- years on record
- 2000s
- peak decade
- 73%
- born in that decade
252 boys have been named Caillou since 2001, though it isn't currently a top-ranked name.
According to the U.S. Social Security Administration, Caillou has been recorded 252 times among boys since 2001, though it is not among the currently most-used boys names, with its heaviest use in the 2000s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 2001 to 2019.
- 252 total births
- 2001–2019 years on record
- 2000s peak decade
- 73% born in that decade
Data updated Jun 2026
The verdict
252 boys have been named Caillou since 2001, peaking in the 2000s, last recorded in 2019.
- 252
- total births
- 2001–2019
- years on record
- 2000s
- peak decade
- 73%
- born in that decade
2000s
Peak decade
73% of everyone ever named Caillou was born in this single decade.
2001
Single peak year
35 babies were named Caillou in 2001 - its busiest year on record.
Caillou's usage pattern, beyond the headline number
Divide Caillou's SSA record in two at 2009 and the more recent half accounts for 33% of all births, the earlier half the remaining 67%, consistent with a name more common in the past than in recent years. Its calmest year was 2017, with only 5 births recorded -- set against the 2001 peak of 35, that's the full swing in one name's fortunes.
Caillou at a glance
Last recorded 2019Peak year
2001
Current rank
Unranked
Active since
2001
Caillou popularity over time
Annual U.S. births registered with the Social Security Administration · 2001–2019
- Peak year (2001)
- 35
- Annual births at peak, across 19 years of records
Caillou by decade
Total births in each ten-year window, peak vs trough at a glance
2000s was Caillou's strongest decade.
184 babies received the name during that ten-year window, about 73% of all-time use.
Caillou births by decade
Total births in each ten-year window
- 2000s
2000s
184 births
- 2010s 68
2010s
68 births
What this shows Peak: 2000s at 184 births (73% of all-time use).
Caillou by state
Where Caillou concentrates geographically, total births since 2001
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 19 | 7.5% |
| #2 | Texas | | 5 | 2.0% |
California share of Caillou's total US births 7.5%
Even split
19 of 252 births nationwide. Compared to a flat distribution across 2 reporting states.
Frequently Asked Questions
How popular is the name Caillou? ▼
252 babies have been named Caillou since 2001. It was last recorded in 2019. The peak year was 2001 with 35 births.
When was Caillou most popular? ▼
Caillou was most popular in the 2000s decade with 184 total births. The single peak year was 2001.
Where is Caillou most popular? ▼
The top states for the name Caillou are California (19 births), Texas (5 births).
How long has the name Caillou been used? ▼
Records for Caillou go back to 2001, giving 19 years of history through 2019.
What names are similar to Caillou? ▼
Names with a similar sound or spelling include Caiden, Cairo, Cain, Caius, and 4 more. These share a common prefix and are also used for boys.
What to do with Caillou's data
- Caillou's usage has stayed within range of its 2000s decade-level peak (184 total births) through the 2010s (68) -- a comparatively stable name, not a fading trend.
- California records the most Caillous (19 births) -- see the full state breakdown if geography matters to your decision. California names
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Caillou
Nearby Names Like Caillou
Names with a similar sound, spelling, or feel to Caillou
Caiden Boy
#546 23,341 births
Cairo Boy
#355 9,415 births
Cain Boy
#981 7,628 births
Caius Boy
#1060 2,329 births
Caine Boy
#2272 2,104 births
Compare Caillou side by side: Caillou vs Caiden Caillou vs Cairo Caillou vs Cain
Related Names
Names with a similar number of total births
Data Sources
Data as of June 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 2001–2019 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Caillou: Baby Name Since 2001 - 252 Births, Peak 2001." NameAlmanac. Accessed via https://namealmanac.com/name/caillou. Licensed CC BY-SA 4.0.
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Caillou draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.