Cillian vs Dermott
Cillian and Dermottcompared 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 1985, Cillian was ranked #135 and Dermott #269 among boys in Republic of Ireland.
Cillian and Dermott over time
Cillian and Dermott appear together in 1 published list, across 12 years of shared records. Cillian held the stronger position in more years in 1 of them, Dermott 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.
Dermott reached its own highest recorded position earlier in 1 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.
List by list
Republic of Ireland · Boys12 shared years, 1970–1985
Cillian held the stronger position in 8 of those years, Dermott in 4.
Highest recorded here: Cillian #124 in 1982, Dermott #203 in 1972.
The order changed in 1976: Cillian moved ahead. In 1975 they stood at #251 and #236; by 1976 that had become #203 and #316.
Most recent shared year, 1985: Cillian #135, Dermott #269.
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 | Dermott |
|---|---|---|
| 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 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, GB-SCT, IE | IE |
| Most recent popularity observation | Republic of Ireland · Boys #9 (2025) | Republic of Ireland · Boys #269 (1985) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 82/100 | 82/100 |
| International familiarity (demonstration score) | 100/100 | 40/100 |
| Data Confidence | medium | medium |
What the data shows
- Cillian has a recorded origin (Irish); Dermott does not have one recorded yet.
- Cillian and Dermott both have 2 syllables.
- A meaning is recorded for Cillian; Dermott doesn't have one written yet.
- Both names have recorded usage in 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
Dermott
Popularity journey
First recorded1964
First recorded at #232 among boys in Republic of Ireland in 1964 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1964–1985
Highest recorded position: #137 among boys in Republic of Ireland, in 1965 (recorded 1964–1985).
Republic of Ireland · Boys
Most recent1985
Most recently recorded at #269 among boys in Republic of Ireland, in 1985.
Republic of Ireland · Boys