Issac vs Sebastian
Issac and Sebastiancompared 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 2025, Issac was ranked #615 and Sebastian #47 among boys in England and Wales.
Scotland · Boys
In 2024, Issac was ranked #619 and Sebastian #116 among boys in Scotland.
Republic of Ireland · Boys
In 2025, Issac was ranked #829 and Sebastian #125 among boys in Republic of Ireland.
Northern Ireland · Boys
In 2024, Issac was ranked #404 and Sebastian #154 among boys in Northern Ireland.
Issac and Sebastian over time
Issac and Sebastian appear together in 2 published lists, across 43 years of shared records. Sebastian held the stronger position in more years in 2 of them, Issac in 0.
The order between them changed and held in one of those lists — a change in that published list, never a claim that one name displaced the other.
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.
- One moved ahead of the other
In 2008, Sebastian moved ahead of Issac in Republic of Ireland · Boys — #324 and #369 the year before became #601 and #137.
- Longest-running competitions
Issac and Sebastian were both ranked in England and Wales · Boys for 30 years, from 1996 to 2025, ending at #615 and #47.
- Peaked in the same years
Both reached their highest recorded position in England and Wales · Boys within 2 years — Issac #382 in 2019, Sebastian #28 in 2018.
List by list
England and Wales · Boys30 shared years, 1996–2025
Issac held the stronger position in 0 of those years, Sebastian in 30.
Highest recorded here: Issac #382 in 2019, Sebastian #28 in 2018.
The order between them never changed and held in this list.
Most recent shared year, 2025: Issac #615, Sebastian #47.
Republic of Ireland · Boys13 shared years, 1998–2025
Issac held the stronger position in 1 of those years, Sebastian in 12.
Highest recorded here: Issac #324 in 1998, Sebastian #92 in 2010.
The order changed in 2008: Sebastian moved ahead. In 2007 they stood at #324 and #369; by 2008 that had become #601 and #137.
Most recent shared year, 2025: Issac #829, Sebastian #125.
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 Sebastian
Pairs where Sebastian shares a published list with another name, each measured inside one registrar's own list.
- Sebastian vs Taylor
In 1996 they stood at #114 and #121 in England and Wales · Boys, 7 places apart; by 2025 they were #47 and #507.
Sebastian · Taylor · 30 shared years, 1996–2025 · Started together, ended far apart
- Sebastian vs Christian
Over 58 shared years in Norway · Boys, Sebastian rose about as far as Christian fell — from #415 and #71 in 1968 to #53 and #131 in 2025.
Sebastian · Christian · 58 shared years, 1968–2025 · Mirrored each other
- Sebastian vs Eirik
Over 58 shared years in Norway · Boys, Sebastian rose about as far as Eirik fell — from #415 and #72 in 1968 to #53 and #122 in 2025.
Sebastian · Eirik · 58 shared years, 1968–2025 · Mirrored each other
- Finn vs Sebastian
Over 58 shared years in Norway · Boys, Sebastian rose about as far as Finn fell — from #81 and #415 in 1968 to #153 and #53 in 2025.
Finn · Sebastian · 58 shared years, 1968–2025 · Mirrored each other
Side by side
| Field | Issac | Sebastian |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Editorially researched profile |
| Gender usage | male | male |
| Meaning | Not yet recorded | Traditionally interpreted as 'venerable' or 'revered' — from Latin Sebastianus, 'from Sebaste' (a city in Asia Minor), whose own name derives from a Greek word used to translate the Roman imperial title Augustus. |
| Origin | Not yet recorded | Latin, from Greek |
| Pronunciation | Not yet recorded | /səˈbæstʃən/ |
| Syllables | 2 | 3 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, GB-SCT, IE | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | England and Wales · Boys #615 (2025) | New South Wales, Australia · Boys #31 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 65/100 |
| Spelling simplicity (demonstration score) | 94/100 | 70/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Sebastian has a recorded origin (Latin, from Greek); Issac does not have one recorded yet.
- Issac has 2 syllables, compared with 3 for Sebastian.
- A meaning is recorded for Sebastian; Issac doesn't have one written yet.
- Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.
How each name got here
Issac
Popularity journey
First recorded1996
First recorded at #898 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 recorded1998–2025
Highest recorded position: #324 among boys in Republic of Ireland, in 1998 (recorded 1998–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #615 among boys in England and Wales, in 2025.
England and Wales · Boys
Sebastian
Popularity journey
First recorded1968
First recorded at #415 among boys in Norway in 1968 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1968–2025
Highest recorded position: #6 among boys in Norway, in 2006 (recorded 1968–2025).
Norway · Boys
Most recent2025
Most recently recorded at #47 among boys in England and Wales, in 2025.
England and Wales · Boys