Colin vs Isac

Colin and Isaccompared on official birth-registration statistics and Namewise's recorded data. This page states what each name's record shows — it never picks a winner or scores one name against the other.

Head to head

Ranks are only compared within one published list and one year. Two ranks from different years, from a boys' and a girls' list, or from different registrars are not comparable, so they are not placed side by side.

Norway · Boys
In 2025, Colin was ranked #119 and Isac #305 among boys in Norway.
Republic of Ireland · Boys
In 2024, Colin was ranked #302 and Isac #655 among boys in Republic of Ireland.
England and Wales · Boys
In 2024, Colin was ranked #1000 and Isac #2263 among boys in England and Wales.

Colin and Isac over time

Colin and Isac appear together in 2 published lists, across 47 years of shared records. Neither was ahead in more lists than the other.

In none of those lists did their order change and stay changed.

Each reached its own highest recorded position first in 1 of the lists they share.

Counted list by list. Two names in the same published list are measured on the same scale in the same year, so those comparisons are real — but positions from different lists are not, so nothing here is combined into an overall standing.

How this pair is related

The relationship kinds these two qualify for, each under its own stated rule. Every one is drawn from a list they both appear in.

Repeatedly exchanged positions
Colin and Isac changed places 8 times in Norway · Boys between 1998 and 2025, ending at #119 and #305.
Peaked in the same years
Both reached their highest recorded position in England and Wales · Boys within 2 years — Colin #491 in 2010, Isac #1688 in 2011.

List by list

Norway · Boys28 shared years, 1998–2025
Colin held the stronger position in 12 of those years, Isac in 16.
Highest recorded here: Colin #119 in 2025, Isac #167 in 2021.
The order between them never changed and held in this list.
Most recent shared year, 2025: Colin #119, Isac #305.
England and Wales · Boys19 shared years, 2004–2024
Colin held the stronger position in 19 of those years, Isac in 0.
Highest recorded here: Colin #491 in 2010, Isac #1688 in 2011.
The order between them never changed and held in this list.
Most recent shared year, 2024: Colin #1000, Isac #2263.

Two names moving past each other in a ranking is a fact about the ranking. Namewise does not claim one name displaced the other, that families chose between them, or that either influenced the other — none of that is in this data.

Where to go next

Comparisons that share a name, a rule or a published list with this one. Each is an existing comparison page with its own evidence — nothing here says these pairs are alike.

Other comparisons involving Colin

Pairs where Colin shares a published list with another name, each measured inside one registrar's own list.

Colin vs Ronald
In 1964 they stood at #89 and #89 in Republic of Ireland · Boys, 0 places apart; by 2012 they were #169 and #718.
Colin · Ronald · 34 shared years, 1964–2012 · Started together, ended far apart
See the 2012 Republic of Ireland ranking
Gary vs Colin
In 1964 they stood at #84 and #89 in Republic of Ireland · Boys, 5 places apart; by 2024 they were #785 and #302.
Gary · Colin · 60 shared years, 1964–2024 · Started together, ended far apart
See the 2024 Republic of Ireland ranking
Oliver vs Colin
In 1997 they stood at #100 and #96 in Northern Ireland · Boys, 4 places apart; by 2021 they were #5 and #433.
Oliver · Colin · 21 shared years, 1997–2021 · Started together, ended far apart
See the 2021 Northern Ireland ranking
Harry vs Colin
In 1997 they stood at #87 and #96 in Northern Ireland · Boys, 9 places apart; by 2021 they were #10 and #433.
Harry · Colin · 21 shared years, 1997–2021 · Started together, ended far apart
See the 2021 Northern Ireland ranking

Side by side

Side-by-side comparison of Colin, Isac
Field	Colin	Isac
Record type	Official statistical record (evidence-only)	Official statistical record (evidence-only)
Gender usage	male	male
Meaning	Not yet recorded	Not yet recorded
Origin	Not yet recorded	Not yet recorded
Pronunciation	Not yet recorded	Not yet recorded
Syllables	2	2
Common variants / nicknames	Not yet recorded	Not yet recorded
Recorded regional usage	AU-NSW, GB-ENW, GB-NIR, IE, NO, NZ	GB-ENW, IE, NO
Most recent popularity observation	Norway · Boys #119 (2025)	Norway · Boys #305 (2025)
Pronunciation clarity (demonstration score)	Not yet recorded	Not yet recorded
Spelling simplicity (demonstration score)	94/100	95/100
International familiarity (demonstration score)	100/100	100/100
Data Confidence	medium	medium

What the data shows

Colin and Isac both have 2 syllables.
Both names have recorded usage in GB-ENW, IE, NO.

How each name got here

Colin

Popularity journey

First recorded1946
First recorded at #326 among boys in Norway in 1946 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1952–1983
Highest recorded position: #22 among boys in New South Wales, Australia, in 1952 (recorded 1952–1983).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #119 among boys in Norway, in 2025.
Norway · Boys

Isac

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 #305 among boys in Norway, in 2025.
Norway · Boys