Caio

maleStatistical record

What official birth registration shows about Caio: which national registrars published it, in which years, and how its recorded position changed.

No researched meaning, origin or pronunciation yet — what that means.

Caio: Recorded since 1996, it reached #496 in 2020, and it stood at #655 in 2024.

2registrars recorded it
30times a registrar ranked it
29years from first to last
#496highest recorded position
5groupings it qualifies for

Region

Rising

among boys in England and Wales · 1996–2024

View as table

England and Wales · Boys rank by year
Year	Rank
1996	#2020
1998	#2901
1999	#2943
2000	#1889
2001	#2220
2002	#2636
2003	#1771
2004	#2578
2005	#1991
2006	#1224
2007	#1252
2008	#1156
2009	#1175
2010	#1241
2011	#929
2012	#1051
2013	#931
2014	#916
2015	#1046
2016	#946
2017	#1068
2018	#958
2019	#1253
2020	#1111
2021	#1023
2022	#758
2023	#929
2024	#1076

VerifiedSource: Office for National Statistics — Baby Names in England and Wales.Confidence: high.

See all England and Wales names · Source: Office for National Statistics — Baby Names in England and Wales

What the data shows

RisingEngland and Wales · Boys

Recorded in official data among boys in England and Wales in 28 of the 29 years from 1996 to 2024.

In 2024: #655 among boys in Republic of Ireland, #1076 among boys in England and Wales.

Official data from 2 national registrars across 2 regions, 1996–2024 · Office for National Statistics. Data sources

Popularity journey

First recorded1996
First recorded at #2020 among boys in England and Wales in 1996 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Boys
Highest recorded2020–2024
Highest recorded position: #496 among boys in Republic of Ireland, in 2020 (recorded 2020–2024).
Republic of Ireland · Boys
Most recent2024
Most recently recorded at #1076 among boys in England and Wales, in 2024.
England and Wales · Boys

Caio appears in 2 of the published lists Namewise holds. The longest record is England and Wales · Boys, which has ranked it in 28 years beginning in 1996, and has registered 554 births with the name.

Caio across 2 official records

Each registrar publishes its own list, so these figures are read down a row, never across one. A position in one country is not comparable with a position in another, and Namewise never combines them into a single ranking. The birth counts do not compare across rows either, for a different reason: England and Wales registers roughly thirty times as many births a year as Northern Ireland, so a larger total says which registrar recorded it as much as how widely the name was given.

Caio's first, highest and most recent recorded position in each official list, with the number of births each registrar registered with the name and its largest single year
Published list	First recorded	Highest	Most recent	Years recorded	Births registered	Most in one year
England and Wales · Boys	#2020 (1996)	#758 (2022)	#1076 (2024)	28 of 29	554 (1996–2024)	43 (2022)
Republic of Ireland · Boys	#496 (2020)	#496 (2020)	#655 (2024)	2 of 5	10 (2020–2024)	6 (2020)

Caio by decade in England and Wales · Boys

Births registered with the name in each decade of this one list, with the number of years the list covers in that decade. Bars are scaled on births a year, which is the figure that compares between decades — a decade the list only partly covers has a smaller total without being a quieter decade. Figures belong to this registrar alone and do not carry to another.

Births registered with Caio in England and Wales · Boys, by decade, with years covered and the average per year
Decade	Births registered	Years covered	A year
1990s	11	3 of 10	4
2000s	113	10 of 10	11
2010s	275	10 of 10	28
2020sbusiest	155	5 of 10	31

Across England and Wales · Boys, the 2020s were its busiest decade — the 5 years of it this list covers, averaging 31 births a year.

See the names England and Waleshas recorded the most births with →

Caio appears in

Groupings this name qualifies for under their own stated rules, from the same official statistics shown above.

Popularity data

Official popularity data is available for 2 regions, from 1996 to 2024. Highest recorded position: #496 in Republic of Ireland in 2020.

Caio's recorded popularity observations by year, region and administrative category, including rank, registered births, source confidence and when each region's data was last reviewed.
Year	Region	Category	Rank	Births registered	Confidence	Status
2024	England and Wales	male	#1076	27	High	Verified
2023	England and Wales	male	#929	33	High	Verified
2022	England and Wales	male	#758	43	High	Verified
2021	England and Wales	male	#1023	28	High	Verified
2020	England and Wales	male	#1111	24	High	Verified
2019	England and Wales	male	#1253	20	High	Verified
2018	England and Wales	male	#958	30	High	Verified
2017	England and Wales	male	#1068	27	High	Verified
2016	England and Wales	male	#946	31	High	Verified
2015	England and Wales	male	#1046	27	High	Verified
2014	England and Wales	male	#916	32	High	Verified
2013	England and Wales	male	#931	31	High	Verified
2012	England and Wales	male	#1051	26	High	Verified
2011	England and Wales	male	#929	31	High	Verified
2010	England and Wales	male	#1241	20	High	Verified
2009	England and Wales	male	#1175	21	High	Verified
2008	England and Wales	male	#1156	21	High	Verified
2007	England and Wales	male	#1252	18	High	Verified
2006	England and Wales	male	#1224	17	High	Verified
2005	England and Wales	male	#1991	8	High	Verified
2004	England and Wales	male	#2578	5	High	Verified
2003	England and Wales	male	#1771	8	High	Verified
2002	England and Wales	male	#2636	4	High	Verified
2001	England and Wales	male	#2220	5	High	Verified
2000	England and Wales	male	#1889	6	High	Verified
1999	England and Wales	male	#2943	3	High	Verified
1998	England and Wales	male	#2901	3	High	Verified
1996	England and Wales	male	#2020	5	High	Verified
2024	Republic of Ireland	male	#655	4	High	Verified
2020	Republic of Ireland	male	#496	6	High	Verified

England and Wales hub — collected by Office for National Statistics
Republic of Ireland hub — collected by CSO Ireland

See methodology and data sources for how popularity data is collected and what "confidence" means.

What the record shows

Recorded by 2 registrars between 1996 and 2024, ranked in 28 years of that period.

Its highest recorded position is #496, first reached in 2020.

Its largest count from any one registrar is 43 births, registered in England and Wales in 2022.

Its record falls into 2 separate stretches, with a longest absence of 1 year.

A second registrar first ranked it in 2020, and 24 years separate the first registrar to record it from the last.

Every figure here is counted from the seven official registrars Namewise holds. A position is only ever a place within the list that published it, and a record that thins or stops is a fact about what registrars printed — never about how many children received the name.

Where to go next

Records with a comparable body of evidence, so the catalogue can be read outward from this one. Each group states the rule it was selected by.

Next in the catalogue

The records either side of this one alphabetically.

Cainan · #2501, 11y
Caine · #330, 29y
Caira · #528, 24y
Cairan · #290, 16y

A comparable record

Records held by the same 2 registrars, over a similar number of ranked years, whose highest position is closest to this one. A similar body of evidence — never a claim that the names themselves are alike.

Adina · #496, 29y
Rohaan · #496, 28y
Elenor · #497, 25y
Eloisa · #497, 30y

Also first recorded in the 1990s

Records whose earliest ranking in Namewise's registrar data also falls between 1990 and 1999.

Adina · #496, 29y
Jadine · #496, 13y
Rohaan · #496, 28y
Sanaa · #496, 29y

Caio was ranked #496 in Republic of Ireland · Boys in 2020. These are the names immediately either side of it on that published list — a fact about the registrar's own output, not a similarity judgement.

Caio and the names beside it

Two names in the same published list are measured on the same scale, in the same year, by the same registrar — so these are positions that genuinely passed each other, not a similarity judgement. Drawn from the 2,573 names with a recorded popularity standing (common, familiar, uncommon), so a name outside that set could have passed Caio without appearing here.

Caio moved ahead of

Harald Compare
In 2005 they stood at #2901 and #2901 in England and Wales · Boys; by 2006 that had become #1224 and #4052.
Shannon Compare
In 2005 they stood at #2578 and #2304 in England and Wales · Boys; by 2006 that had become #1224 and #4052.
Gustav Compare
In 2004 they stood at #2578 and #2070 in England and Wales · Boys; by 2005 that had become #1991 and #3849.
Isak Compare
In 2002 they stood at #2636 and #2636 in England and Wales · Boys; by 2003 that had become #1771 and #3467.

Moved ahead of Caio

Hudson Compare
In 1997 they stood at #2020 and #2863 in England and Wales · Boys; by 1998 that had become #2901 and #2419.
Hunter Compare
In 2006 they stood at #1224 and #1643 in England and Wales · Boys; by 2007 that had become #1252 and #926.
Theodor Compare
In 2014 they stood at #916 and #1012 in England and Wales · Boys; by 2015 that had become #1046 and #873.
Tadhg Compare
In 2016 they stood at #946 and #1050 in England and Wales · Boys; by 2017 that had become #1068 and #943.

Moved the opposite way to Caio

Aaron Compare
Between 1996 and 2024 in England and Wales · Boys, Caio went from #2020 to #1076 while Aaron went from #33 to #154.
Adam Compare
Between 1996 and 2024 in England and Wales · Boys, Caio went from #2020 to #1076 while Adam went from #16 to #35.
Alan Compare
Between 1996 and 2024 in England and Wales · Boys, Caio went from #2020 to #1076 while Alan went from #163 to #592.
Alex Compare
Between 1996 and 2024 in England and Wales · Boys, Caio went from #2020 to #1076 while Alex went from #43 to #171.

Moved the same way as Caio

Albie Compare
Between 1996 and 2024 in England and Wales · Boys, Caio went from #2020 to #1076 and Albie from #853 to #19.
Alfie Compare
Between 1996 and 2024 in England and Wales · Boys, Caio went from #2020 to #1076 and Alfie from #119 to #16.
Alfred Compare
Between 1996 and 2024 in England and Wales · Boys, Caio went from #2020 to #1076 and Alfred from #218 to #81.
Archie Compare
Between 1996 and 2024 in England and Wales · Boys, Caio went from #2020 to #1076 and Archie from #192 to #10.

What's not yet available

Meaning
Origin
Pronunciation
Nicknames and spelling variants

Absence from this list does not mean the name isn't genuinely meaningful or widely used — only that Namewise hasn't sourced and reviewed that content yet. Absence from a specific year or geography above does not prove zero use there either; official statistics only publish names above a minimum threshold.

Official popularity data is available for 2 regions, from 1996 to 2024. Highest recorded position: #496 in Republic of Ireland in 2020. Source data last verified 2026-07-21.

Caio

Caio at a glance

What the data shows

Popularity journey

Caio across 2 official records

Caio by decade in England and Wales · Boys

Caio appears in

Popularity data

What the record shows

Where to go next

Next in the catalogue

A comparable record

Also first recorded in the 1990s

Names published alongside Caio

Caio and the names beside it

Caio moved ahead of

Moved ahead of Caio

Moved the opposite way to Caio

Moved the same way as Caio

Caio at a glance

Caio across 2 official records

Caio by decade in England and Wales · Boys

Caio appears in

What the record shows

Where to go next

Next in the catalogue

A comparable record

Also first recorded in the 1990s

Names published alongside Caio

Caio and the names beside it

Caio moved ahead of

Moved ahead of Caio

Moved the opposite way to Caio

Moved the same way as Caio