Bill vs Olan
Bill and Olancompared 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.
Republic of Ireland · Boys
In 2025, Bill was ranked #676 and Olan #329 among boys in Republic of Ireland.
England and Wales · Boys
In 2024, Bill was ranked #2921 and Olan #2921 among boys in England and Wales.
Bill and Olan over time
Bill and Olan appear together in 1 published list, across 33 years of shared records. Bill held the stronger position in more years in 1 of them, Olan in 0.
In none of those lists did their order change and stay changed.
Olan reached its own highest recorded position earlier in 1 of those lists, and Bill 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
Bill and Olan changed places 18 times in Republic of Ireland · Boys between 1991 and 2025, ending at #676 and #329.
- Longest-running competitions
Bill and Olan were both ranked in Republic of Ireland · Boys for 33 years, from 1991 to 2025, ending at #676 and #329.
- Peaked in the same years
Both reached their highest recorded position in Republic of Ireland · Boys within 2 years — Bill #206 in 2000, Olan #222 in 1999.
List by list
Republic of Ireland · Boys33 shared years, 1991–2025
Bill held the stronger position in 16 of those years, Olan in 15.
Highest recorded here: Bill #206 in 2000, Olan #222 in 1999.
The order between them never changed and held in this list.
Most recent shared year, 2025: Bill #676, Olan #329.
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 | Bill | Olan |
|---|---|---|
| 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 | 1 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, IE | GB-ENW, IE |
| Most recent popularity observation | Republic of Ireland · Boys #676 (2025) | Republic of Ireland · Boys #329 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 95/100 | 95/100 |
| International familiarity (demonstration score) | 60/100 | 60/100 |
| Data Confidence | medium | medium |
What the data shows
- Bill has 1 syllable, compared with 2 for Olan.
- 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
Olan
Popularity journey
First recorded1972
First recorded at #307 among boys in Republic of Ireland in 1972 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1972–2025
Highest recorded position: #222 among boys in Republic of Ireland, in 1999 (recorded 1972–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #329 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys