Jack vs Sean
Jack and Seancompared 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.
New South Wales, Australia · Boys
In 2007, Jack was ranked #1 and Sean #85 among boys in New South Wales, Australia.
New Zealand · Boys
In 2007, Jack was ranked #1 and Sean #83 among boys in New Zealand.
Republic of Ireland · Boys
In 2025, Jack was ranked #2 and Sean #141 among boys in Republic of Ireland.
Northern Ireland · Boys
In 2024, Jack was ranked #4 and Sean #48 among boys in Northern Ireland.
Scotland · Boys
In 2024, Jack was ranked #7 and Sean #234 among boys in Scotland.
England and Wales · Boys
In 2024, Jack was ranked #22 and Sean #638 among boys in England and Wales.
Norway · Boys
In 2022, Jack was ranked #382 and Sean #496 among boys in Norway.
Jack and Sean over time
Jack and Sean appear together in 6 published lists, across 195 years of shared records. Jack held the stronger position in more years in 5 of them, Sean in 1.
The order between them changed and held in 3 of those lists — a change in that published list, never a claim that one name displaced the other.
Sean reached its own highest recorded position earlier in 3 of those lists, Jack in 1. 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.
- One moved ahead of the other
In 1989, Jack moved ahead of Sean in New South Wales, Australia · Boys — #52 and #47 the year before became #44 and #45.
- Repeatedly exchanged positions
Jack and Sean changed places 10 times in Norway · Boys between 1965 and 2022, ending at #382 and #496.
- Closest over the longest run
Across 21 shared years in New South Wales, Australia · Boys, Jack and Sean averaged 46.2 places apart, ending at #1 and #85.
- Mirrored each other
Over 21 shared years in New South Wales, Australia · Boys, Jack rose about as far as Sean fell — from #95 and #52 in 1986 to #1 and #85 in 2007.
- Longest-running competitions
Jack and Sean were both ranked in Norway · Boys for 44 years, from 1965 to 2022, ending at #382 and #496.
- Peaked in the same years
Both reached their highest recorded position in England and Wales · Boys within 2 years — Jack #1 in 1996, Sean #49 in 1996.
List by list
Republic of Ireland · Boys53 shared years, 1970–2025
Jack held the stronger position in 23 of those years, Sean in 30.
Highest recorded here: Jack #1 in 2000, Sean #1 in 1997.
The order changed in 2007: Jack moved ahead. In 2006 they stood at #2 and #1; by 2007 that had become #1 and #2.
Most recent shared year, 2025: Jack #2, Sean #141.
Norway · Boys44 shared years, 1965–2022
Jack held the stronger position in 24 of those years, Sean in 20.
Highest recorded here: Jack #240 in 1967, Sean #185 in 2007.
The order between them never changed and held in this list.
Most recent shared year, 2022: Jack #382, Sean #496.
England and Wales · Boys29 shared years, 1996–2024
Jack held the stronger position in 29 of those years, Sean in 0.
Highest recorded here: Jack #1 in 1996, Sean #49 in 1996.
The order between them never changed and held in this list.
Most recent shared year, 2024: Jack #22, Sean #638.
Northern Ireland · Boys28 shared years, 1997–2024
Jack held the stronger position in 28 of those years, Sean in 0.
Highest recorded here: Jack #1 in 2001, Sean #13 in 2001.
The order between them never changed and held in this list.
Most recent shared year, 2024: Jack #4, Sean #48.
New South Wales, Australia · Boys21 shared years, 1986–2007
Jack held the stronger position in 18 of those years, Sean in 3.
Highest recorded here: Jack #1 in 2003, Sean #42 in 1990.
The order changed in 1989: Jack moved ahead. In 1988 they stood at #52 and #47; by 1989 that had become #44 and #45.
Most recent shared year, 2007: Jack #1, Sean #85.
New Zealand · Boys20 shared years, 1988–2007
Jack held the stronger position in 14 of those years, Sean in 6.
Highest recorded here: Jack #1 in 2005, Sean #28 in 1995.
The order changed in 1994: Jack moved ahead. In 1993 they stood at #37 and #29; by 1994 that had become #24 and #33.
Most recent shared year, 2007: Jack #1, Sean #83.
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.
Side by side
| Field | Jack | Sean |
|---|---|---|
| Record type | Editorially researched profile | Editorially researched profile |
| Gender usage | male | male |
| Meaning | God is gracious (via John), though now used as an independent name. | The Irish form of John, ultimately carrying the meaning 'Yahweh is gracious' via its Hebrew ancestry. |
| Origin | English, historically a diminutive of John | Irish, Anglicised form of Sean, via Hebrew John |
| Pronunciation | /ˈdʒæk/ | /ʃɔːn/ |
| Syllables | 1 | 1 |
| Common variants / nicknames | Jankin | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | Republic of Ireland · Boys #2 (2025) | Republic of Ireland · Boys #141 (2025) |
| Pronunciation clarity (demonstration score) | 90/100 | 90/100 |
| Spelling simplicity (demonstration score) | 95/100 | 95/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | high | medium |
What the data shows
- Jack is recorded with a English, historically a diminutive of John origin, while Sean is recorded with a Irish, Anglicised form of Sean, via Hebrew John origin.
- Jack and Sean both have 1 syllable.
- Jack's recorded meaning differs from Sean's — see the table above for each.
- Both names have recorded usage in AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ.
- The available evidence gives Jack a "high" Data Confidence level and Sean a "medium" level — this reflects how complete and corroborated the underlying evidence is, not a judgement of either name.
How each name got here
Jack
Popularity journey
First recorded1945
First recorded at #171 among boys in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1996–2024
Highest recorded position: #1 among boys in England and Wales, in 1996 (recorded 1996–2024).
England and Wales · Boys
Most recent2025
Most recently recorded at #10 among boys in New South Wales, Australia, in 2025.
New South Wales, Australia · Boys
Sean
Popularity journey
First recorded1963
First recorded at #82 among boys in New South Wales, Australia in 1963 — the earliest year that source publishes this name, not necessarily the earliest it was used.
New South Wales, Australia · Boys
Highest recorded1964–2025
Highest recorded position: #1 among boys in Republic of Ireland, in 1997 (recorded 1964–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #141 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys