Cillian vs Harrison
Cillian and Harrisoncompared 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.
Northern Ireland · Boys
In 2024, Cillian was ranked #2 and Harrison #89 among boys in Northern Ireland.
Republic of Ireland · Boys
In 2025, Cillian was ranked #9 and Harrison #118 among boys in Republic of Ireland.
Scotland · Boys
In 2024, Cillian was ranked #83 and Harrison #40 among boys in Scotland.
England and Wales · Boys
In 2024, Cillian was ranked #177 and Harrison #52 among boys in England and Wales.
Cillian and Harrison over time
Cillian and Harrison appear together in 3 published lists, across 82 years of shared records. Cillian held the stronger position in more years in 2 of them, Harrison in 1.
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.
Harrison reached its own highest recorded position earlier in 3 of those lists, and Cillian 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.
- One moved ahead of the other
In 2006, Cillian moved ahead of Harrison in Northern Ireland · Boys — #178 and #137 the year before became #110 and #167.
- Repeatedly exchanged positions
Cillian and Harrison changed places 5 times in Northern Ireland · Boys between 1999 and 2024, ending at #2 and #89.
List by list
England and Wales · Boys29 shared years, 1996–2024
Cillian held the stronger position in 0 of those years, Harrison in 29.
Highest recorded here: Cillian #177 in 2024, Harrison #30 in 2007.
The order between them never changed and held in this list.
Most recent shared year, 2024: Cillian #177, Harrison #52.
Republic of Ireland · Boys27 shared years, 1999–2025
Cillian held the stronger position in 27 of those years, Harrison in 0.
Highest recorded here: Cillian #4 in 2024, Harrison #116 in 2020.
The order between them never changed and held in this list.
Most recent shared year, 2025: Cillian #9, Harrison #118.
Northern Ireland · Boys26 shared years, 1999–2024
Cillian held the stronger position in 21 of those years, Harrison in 4.
Highest recorded here: Cillian #2 in 2024, Harrison #74 in 2019.
The order changed in 2006: Cillian moved ahead. In 2005 they stood at #178 and #137; by 2006 that had become #110 and #167.
Most recent shared year, 2024: Cillian #2, Harrison #89.
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 | Cillian | Harrison |
|---|---|---|
| Record type | Editorially researched profile | Official statistical record (evidence-only) |
| Gender usage | male | male |
| Meaning | Probably from Old Irish 'cell' (church) combined with a diminutive suffix. | Not yet recorded |
| Origin | Irish | Not yet recorded |
| Pronunciation | Not yet recorded | Not yet recorded |
| 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, NZ |
| Most recent popularity observation | Republic of Ireland · Boys #9 (2025) | New South Wales, Australia · Boys #29 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 82/100 | 76/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Cillian has a recorded origin (Irish); Harrison does not have one recorded yet.
- Cillian has 2 syllables, compared with 3 for Harrison.
- A meaning is recorded for Cillian; Harrison doesn't have one written yet.
- Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.
How each name got here
Cillian
Popularity journey
First recorded1970
First recorded at #305 among boys in Republic of Ireland in 1970 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1997–2024
Highest recorded position: #2 among boys in Northern Ireland, in 2024 (recorded 1997–2024).
Northern Ireland · Boys
Most recent2025
Most recently recorded at #9 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys
Harrison
Popularity journey
First recorded1992
First recorded at #96 among boys in New South Wales, Australia in 1992 — the earliest year that source publishes this name, not necessarily the earliest it was used.
New South Wales, Australia · Boys
Highest recorded1992–2025
Highest recorded position: #13 among boys in New South Wales, Australia, in 2017 (recorded 1992–2025).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #29 among boys in New South Wales, Australia, in 2025.
New South Wales, Australia · Boys