Isac

maleStatistical record

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

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

Isac: Recorded since 1991, it reached #167 in 2021, and it stood at #305 in 2025.

3registrars recorded it
57times a registrar ranked it
35years from first to last
#167highest recorded position
13groupings it qualifies for

Region

Falling

among boys in England and Wales · 2004–2025

View as table

England and Wales · Boys rank by year
Year	Rank
2004	#3009
2005	#3849
2006	#3385
2008	#2507
2009	#1981
2010	#3865
2011	#1688
2012	#3987
2013	#2216
2014	#3895
2015	#2483
2016	#4023
2017	#2512
2018	#2445
2019	#2728
2020	#2682
2021	#2125
2023	#2813
2024	#2263
2025	#3256

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

FallingEngland and Wales · Boys

Recorded in official data among boys in Norway in 30 of the 35 years from 1991 to 2025.

In 2025: #305 among boys in Norway, #3256 among boys in England and Wales.

Official data from 3 national registrars across 3 regions, 1991–2025 · Office for National Statistics. Data sources

Popularity journey

First recorded1991
First recorded at #617 among boys in Norway in 1991 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1991–2025
Highest recorded position: #167 among boys in Norway, in 2021 (recorded 1991–2025).
Norway · Boys
Most recent2025
Most recently recorded at #3256 among boys in England and Wales, in 2025.
England and Wales · Boys

Isac appears in 3 of the published lists Namewise holds. The longest record is Norway · Boys, which has ranked it in 30 years beginning in 1991, and has registered 522 births with the name.

Isac across 3 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.

Isac'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
Norway · Boys	#617 (1991)	#167 (2021)	#305 (2025)	30 of 35	522 (1991–2025)	30 (2016)
Republic of Ireland · Boys	#347 (2001)	#347 (2001)	#655 (2024)	7 of 24	26 (2001–2024)	5 (2004)
England and Wales · Boys	#3009 (2004)	#1688 (2011)	#3256 (2025)	20 of 22	137 (2004–2025)	13 (2011)

Isac by decade in Norway · 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 Isac in Norway · Boys, by decade, with years covered and the average per year
Decade	Births registered	Years covered	A year
1990s	23	4 of 10	6
2000s	172	10 of 10	17
2010sbusiest	225	10 of 10	23
2020s	102	6 of 10	17

Across Norway · Boys, the 2010s were its busiest decade, averaging 23 births a year.

See the names Norwayhas recorded the most births with →

Isac 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 3 regions, from 1991 to 2025. Highest recorded position: #167 in Norway in 2021.

Isac'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
2025	England and Wales	male	#3256	6	High	Verified
2024	England and Wales	male	#2263	10	High	Verified
2023	England and Wales	male	#2813	7	High	Verified
2021	England and Wales	male	#2125	10	High	Verified
2020	England and Wales	male	#2682	7	High	Verified
2019	England and Wales	male	#2728	7	High	Verified
2018	England and Wales	male	#2445	8	High	Verified
2017	England and Wales	male	#2512	8	High	Verified
2016	England and Wales	male	#4023	4	High	Verified
2015	England and Wales	male	#2483	8	High	Verified
2014	England and Wales	male	#3895	4	High	Verified
2013	England and Wales	male	#2216	9	High	Verified
2012	England and Wales	male	#3987	4	High	Verified
2011	England and Wales	male	#1688	13	High	Verified
2010	England and Wales	male	#3865	4	High	Verified
2009	England and Wales	male	#1981	10	High	Verified
2008	England and Wales	male	#2507	7	High	Verified
2006	England and Wales	male	#3385	4	High	Verified
2005	England and Wales	male	#3849	3	High	Verified
2004	England and Wales	male	#3009	4	High	Verified
2025	Norway	male	#305	12	High	Verified
2024	Norway	male	#342	10	High	Verified
2023	Norway	male	#261	16	High	Verified
2022	Norway	male	#228	18	High	Verified
2021	Norway	male	#167	29	High	Verified
2020	Norway	male	#227	17	High	Verified
2019	Norway	male	#260	17	High	Verified
2018	Norway	male	#250	19	High	Verified
2017	Norway	male	#222	22	High	Verified
2016	Norway	male	#187	30	High	Verified
2015	Norway	male	#219	24	High	Verified
2014	Norway	male	#196	29	High	Verified
2013	Norway	male	#224	23	High	Verified
2012	Norway	male	#220	23	High	Verified
2011	Norway	male	#205	26	High	Verified
2010	Norway	male	#335	12	High	Verified
2009	Norway	male	#211	27	High	Verified
2008	Norway	male	#222	24	High	Verified
2007	Norway	male	#197	28	High	Verified
2006	Norway	male	#256	18	High	Verified
2005	Norway	male	#277	14	High	Verified
2004	Norway	male	#261	16	High	Verified
2003	Norway	male	#280	14	High	Verified
2002	Norway	male	#330	10	High	Verified
2001	Norway	male	#363	9	High	Verified
2000	Norway	male	#329	12	High	Verified
1999	Norway	male	#382	9	High	Verified
1998	Norway	male	#510	5	High	Verified
1997	Norway	male	#511	5	High	Verified
1991	Norway	male	#617	4	High	Verified
2024	Republic of Ireland	male	#655	4	High	Verified
2020	Republic of Ireland	male	#741	3	High	Verified
2019	Republic of Ireland	male	#764	3	High	Verified
2008	Republic of Ireland	male	#601	4	High	Verified
2004	Republic of Ireland	male	#390	5	High	Verified
2003	Republic of Ireland	male	#500	3	High	Verified
2001	Republic of Ireland	male	#347	4	High	Verified

England and Wales hub — collected by Office for National Statistics
Norway hub — collected by Statistics Norway (SSB)
Republic of Ireland hub — collected by CSO Ireland

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

Where Isac is officially recorded

3 official registrars have recorded Isac, between 1991 and 2025, in 30 of those 35 years. Each registrar publishes for its own population on its own methodology, so the positions below are each one country's own ranking and are not comparable with one another.

Registrar	Recorded	Years	Its own highest position
Norway	1991–2025	30	#167 in 2021
Republic of Ireland	2001–2024	7	#347 in 2001
England and Wales	2004–2025	20	#1688 in 2011

Its high point came 20 years earlier in Republic of Ireland (2001) than in Norway (2021).

No registrar recorded it for 5 years after 1991; it appears again in 1997.

What the record shows

Recorded by 3 registrars between 1991 and 2025, ranked in 30 years of that period.

Its highest recorded position is #167, first reached in 2021.

Its largest count from any one registrar is 30 births, registered in Norway in 2016.

Its record falls into 2 separate stretches, with a longest absence of 5 years.

A second registrar first ranked it in 2001, and 13 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.

Isabelle · #17, 59y
Isabelle-Rose · #1961, 16y
Isadora · #736, 30y
Isah · #2754, 17y

A comparable record

Records held by the same 3 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.

Che · #167, 30y
Fionntan · #167, 28y
Elli · #165, 30y
Marshall · #165, 30y

Also first recorded in the 1990s

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

Che · #167, 30y
Allie · #168, 30y
Kobe · #166, 29y
Kobi · #166, 30y

Isac was ranked #167 in Norway · Boys in 2021. 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.

Wilhelm#163
Colin#164
Peter#165
Fabian#166
Ragnar#168
Tor#169
Leonard#170
Mats#171

Isac 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 2,577 names with a recorded popularity standing (common, familiar, uncommon), so a name outside that set could have passed Isac without appearing here.

Isac moved ahead of

Graeme
In 2008 they stood at #3385 and #2870 in England and Wales · Boys; by 2009 that had become #1981 and #4527.
Garry
In 2017 they stood at #4023 and #3079 in England and Wales · Boys; by 2018 that had become #2445 and #4749.
Ada
In 2010 they stood at #3865 and #3865 in England and Wales · Boys; by 2011 that had become #1688 and #3830.
Sander
In 2010 they stood at #3865 and #2941 in England and Wales · Boys; by 2011 that had become #1688 and #3830.

Moved ahead of Isac

Henrik
In 2011 they stood at #1688 and #2194 in England and Wales · Boys; by 2012 that had become #3987 and #1962.
Aksel
In 2013 they stood at #2216 and #2403 in England and Wales · Boys; by 2014 that had become #3895 and #2079.
Rune
In 2018 they stood at #2445 and #4749 in England and Wales · Boys; by 2019 that had become #2728 and #2104.
Archie
In 2007 they stood at #390 and #506 in Republic of Ireland · Boys; by 2008 that had become #601 and #252.

Moved the opposite way to Isac

Adrian
Between 1991 and 2025 in Norway · Boys, Isac went from #617 to #305 while Adrian went from #47 to #70.
Alexander
Between 1991 and 2025 in Norway · Boys, Isac went from #617 to #305 while Alexander went from #18 to #81.
Anders
Between 1991 and 2025 in Norway · Boys, Isac went from #617 to #305 while Anders went from #8 to #293.
Andreas
Between 1991 and 2025 in Norway · Boys, Isac went from #617 to #305 while Andreas went from #1 to #96.

Moved the same way as Isac

Aaron
Between 1991 and 2025 in Norway · Boys, Isac went from #617 to #305 and Aaron from #601 to #334.
Adam
Between 1991 and 2025 in Norway · Boys, Isac went from #617 to #305 and Adam from #149 to #29.
Aksel
Between 1991 and 2025 in Norway · Boys, Isac went from #617 to #305 and Aksel from #168 to #25.
Alfred
Between 1991 and 2025 in Norway · Boys, Isac went from #617 to #305 and Alfred from #475 to #26.

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 3 regions, from 1991 to 2025. Highest recorded position: #167 in Norway in 2021. Source data last verified 2026-07-21.

Isac

Isac at a glance

What the data shows

Popularity journey

Isac across 3 official records

Isac by decade in Norway · Boys

Isac appears in

Popularity data

Where Isac is officially recorded

What the record shows

Where to go next

Next in the catalogue

A comparable record

Also first recorded in the 1990s

Names published alongside Isac

Isac and the names beside it

Isac moved ahead of

Moved ahead of Isac

Moved the opposite way to Isac

Moved the same way as Isac

Isac at a glance

Isac across 3 official records

Isac by decade in Norway · Boys

Isac 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 Isac

Isac and the names beside it

Isac moved ahead of

Moved ahead of Isac

Moved the opposite way to Isac

Moved the same way as Isac