Bill vs Isaac

Bill and Isaaccompared 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.

England and Wales · Boys
In 2024, Bill was ranked #2921 and Isaac #37 among boys in England and Wales.
Republic of Ireland · Boys
In 2025, Bill was ranked #676 and Isaac #104 among boys in Republic of Ireland.

Bill and Isaac over time

Bill and Isaac appear together in 2 published lists, across 62 years of shared records. Isaac held the stronger position in more years in 2 of them, Bill in 0.

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

Bill reached its own highest recorded position earlier in 2 of those lists, and Isaac in none. Each position is a place inside its own list, so this compares when they peaked and never how high.

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.

Longest-running competitions
Bill and Isaac were both ranked in Republic of Ireland · Boys for 33 years, from 1992 to 2025, ending at #676 and #104.

List by list

Republic of Ireland · Boys33 shared years, 1992–2025
Bill held the stronger position in 1 of those years, Isaac in 30.
Highest recorded here: Bill #203 in 1998, Isaac #77 in 2014.
The order between them never changed and held in this list.
Most recent shared year, 2025: Bill #676, Isaac #104.
England and Wales · Boys29 shared years, 1996–2024
Bill held the stronger position in 0 of those years, Isaac in 29.
Highest recorded here: Bill #613 in 1997, Isaac #20 in 2015.
The order between them never changed and held in this list.
Most recent shared year, 2024: Bill #2921, Isaac #37.

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 Isaac

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

Isaac vs Tom
In 1996 they stood at #104 and #102 in England and Wales · Boys, 2 places apart; by 2024 they were #37 and #757.
Isaac · Tom · 29 shared years, 1996–2024 · Started together, ended far apart
See the 2024 England and Wales ranking
George vs Isaac
George and Isaac changed places 14 times in New Zealand · Boys between 1981 and 2023, ending at #7 and #46.
George · Isaac · 42 shared years, 1981–2023 · Repeatedly exchanged positions
See the 2023 New Zealand ranking
Elijah vs Isaac
Elijah and Isaac both rose over the same years in 4 registrars — England and Wales · Boys; New South Wales, Australia · Boys; Northern Ireland · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Elijah · Isaac · 30 shared years, 1996–2025 · Moved together in several countries
Jack vs Isaac
Jack and Isaac both rose over the same years in 4 registrars — New South Wales, Australia · Boys; New Zealand · Boys; Northern Ireland · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Jack · Isaac · 39 shared years, 1976–2025 · Moved together in several countries

Side by side

Side-by-side comparison of Bill, Isaac
Field	Bill	Isaac
Record type	Official statistical record (evidence-only)	Editorially researched profile
Gender usage	male	male
Meaning	Not yet recorded	Traditionally understood as 'he will laugh' or 'he laughs', tied to the biblical narrative in which Abraham and Sarah laugh at the prophecy of Isaac's birth in their old age.
Origin	Not yet recorded	Biblical Hebrew, transmitted into English via Greek Isaak and Late Latin Isaac
Pronunciation	Not yet recorded	/ˈaɪzək/
Syllables	1	2
Common variants / nicknames	Not yet recorded	Not yet recorded
Recorded regional usage	GB-ENW, IE	AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ
Most recent popularity observation	Republic of Ireland · Boys #676 (2025)	New South Wales, Australia · Boys #26 (2025)
Pronunciation clarity (demonstration score)	Not yet recorded	90/100
Spelling simplicity (demonstration score)	95/100	94/100
International familiarity (demonstration score)	60/100	100/100
Data Confidence	medium	medium

What the data shows

Isaac has a recorded origin (Biblical Hebrew, transmitted into English via Greek Isaak and Late Latin Isaac); Bill does not have one recorded yet.
Bill has 1 syllable, compared with 2 for Isaac.
A meaning is recorded for Isaac; Bill doesn't have one written yet.
Both names have recorded usage in GB-ENW, IE.

How each name got here

Bill

Popularity journey

First recorded1991
First recorded at #288 among boys in Republic of Ireland in 1991 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1991–2025
Highest recorded position: #203 among boys in Republic of Ireland, in 1998 (recorded 1991–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #676 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys

Isaac

Popularity journey

First recorded1964
First recorded at #232 among boys in Republic of Ireland in 1964 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1990–2025
Highest recorded position: #8 among boys in New South Wales, Australia, in 2015 (recorded 1990–2025).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #26 among boys in New South Wales, Australia, in 2025.
New South Wales, Australia · Boys