Dion vs Sebastien
Dion and Sebastiencompared 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, Dion was ranked #573 and Sebastien #1613 among boys in England and Wales.
Republic of Ireland · Boys
In 2019, Dion was ranked #764 and Sebastien #764 among boys in Republic of Ireland.
Dion and Sebastien over time
Dion and Sebastien appear together in 1 published list, across 30 years of shared records. Dion held the stronger position in more years in 1 of them, Sebastien in 0.
In none of those lists did their order change and stay changed.
Dion reached its own highest recorded position earlier in 1 of those lists, and Sebastien 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.
- Repeatedly exchanged positions
Dion and Sebastien changed places 4 times in England and Wales · Boys between 1996 and 2025, ending at #573 and #1613.
- Longest-running competitions
Dion and Sebastien were both ranked in England and Wales · Boys for 30 years, from 1996 to 2025, ending at #573 and #1613.
List by list
England and Wales · Boys30 shared years, 1996–2025
Dion held the stronger position in 25 of those years, Sebastien in 5.
Highest recorded here: Dion #271 in 1999, Sebastien #517 in 2007.
The order between them never changed and held in this list.
Most recent shared year, 2025: Dion #573, Sebastien #1613.
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 | Dion | Sebastien |
|---|---|---|
| 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 | |
| Syllables | 1 | 3 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, IE, NZ | GB-ENW, IE |
| Most recent popularity observation | England and Wales · Boys #573 (2025) | England and Wales · Boys #1613 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 95/100 | 70/100 |
| International familiarity (demonstration score) | 100/100 | 60/100 |
| Data Confidence | medium | medium |
What the data shows
- Dion has 1 syllable, compared with 3 for Sebastien.
- Both names have recorded usage in GB-ENW, IE.
How each name got here
Dion
Popularity journey
First recorded1967
First recorded at #93 among boys in New Zealand in 1967 — the earliest year that source publishes this name, not necessarily the earliest it was used.
New Zealand · Boys
Highest recorded1967–1984
Highest recorded position: #50 among boys in New Zealand, in 1974 (recorded 1967–1984).
New Zealand · Boys
Most recent2025
Most recently recorded at #573 among boys in England and Wales, in 2025.
England and Wales · Boys
Sebastien
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 recorded1996–2025
Highest recorded position: #517 among boys in England and Wales, in 2007 (recorded 1996–2025).
England and Wales · Boys
Most recent2025
Most recently recorded at #1613 among boys in England and Wales, in 2025.
England and Wales · Boys