Dennis vs Ros
Dennis and Roscompared 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 1999, Dennis was ranked #290 and Ros #266 among boys in Republic of Ireland.
Dennis and Ros over time
Dennis and Ros appear together in 1 published list, across 11 years of shared records. Dennis held the stronger position in more years in 1 of them, Ros 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.
Dennis reached its own highest recorded position earlier in 1 of those lists, and Ros 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 · Boys11 shared years, 1977–1999
Dennis held the stronger position in 8 of those years, Ros in 1.
Highest recorded here: Dennis #179 in 1982, Ros #250 in 1985.
The order changed in 1999: Ros moved ahead. In 1998 they stood at #336 and #369; by 1999 that had become #290 and #266.
Most recent shared year, 1999: Dennis #290, Ros #266.
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 | Dennis | Ros |
|---|---|---|
| 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 | 2 | 1 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, IE, NO, NZ | IE |
| Most recent popularity observation | Norway · Boys #156 (2025) | Republic of Ireland · Girls #873 (2017) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 88/100 | 95/100 |
| International familiarity (demonstration score) | 100/100 | 40/100 |
| Data Confidence | medium | medium |
What the data shows
- Dennis has 2 syllables, compared with 1 for Ros.
- Both names have recorded usage in IE.
How each name got here
Dennis
Popularity journey
First recorded1952
First recorded at #34 among boys in New South Wales, Australia in 1952 — the earliest year that source publishes this name, not necessarily the earliest it was used.
New South Wales, Australia · Boys
Highest recorded1952–1970
Highest recorded position: #34 among boys in New South Wales, Australia, in 1952 (recorded 1952–1970).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #156 among boys in Norway, in 2025.
Norway · Boys
Ros
Popularity journey
First recorded1977
First recorded at #293 among boys in Republic of Ireland in 1977 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1977–1999
Highest recorded position: #250 among boys in Republic of Ireland, in 1985 (recorded 1977–1999).
Republic of Ireland · Boys
Most recent1999
Most recently recorded at #266 among boys in Republic of Ireland, in 1999.
Republic of Ireland · Boys