Isac vs Wilhelm
Isac and Wilhelmcompared 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, Isac was ranked #305 and Wilhelm #121 among boys in Norway.
England and Wales · Boys
In 2015, Isac was ranked #2483 and Wilhelm #4747 among boys in England and Wales.
Isac and Wilhelm over time
Isac and Wilhelm appear together in 1 published list, across 30 years of shared records. Wilhelm held the stronger position in more years in 1 of them, Isac in 0.
In none of those lists did their order change and stay changed.
Isac reached its own highest recorded position earlier in 1 of those lists, and Wilhelm 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
Isac and Wilhelm changed places 6 times in Norway · Boys between 1991 and 2025, ending at #305 and #121.
- Longest-running competitions
Isac and Wilhelm were both ranked in Norway · Boys for 30 years, from 1991 to 2025, ending at #305 and #121.
List by list
Norway · Boys30 shared years, 1991–2025
Isac held the stronger position in 8 of those years, Wilhelm in 22.
Highest recorded here: Isac #167 in 2021, Wilhelm #121 in 2025.
The order between them never changed and held in this list.
Most recent shared year, 2025: Isac #305, Wilhelm #121.
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 | Isac | Wilhelm |
|---|---|---|
| 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 | GB-ENW, IE, NO | GB-ENW, NO |
| Most recent popularity observation | Norway · Boys #305 (2025) | Norway · Boys #121 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 95/100 | 82/100 |
| International familiarity (demonstration score) | 100/100 | 60/100 |
| Data Confidence | medium | medium |
What the data shows
- Isac and Wilhelm both have 2 syllables.
- Both names have recorded usage in GB-ENW, NO.
How each name got here
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
Wilhelm
Popularity journey
First recorded1945
First recorded at #237 among boys in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1945–2025
Highest recorded position: #121 among boys in Norway, in 2025 (recorded 1945–2025).
Norway · Boys
Most recent2025
Most recently recorded at #121 among boys in Norway, in 2025.
Norway · Boys