Oskar vs Tadeusz
Oskar and Tadeuszcompared 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 2020, Oskar was ranked #307 and Tadeusz #741 among boys in Republic of Ireland.
England and Wales · Boys
In 2025, Oskar was ranked #349 and Tadeusz #1897 among boys in England and Wales.
Norway · Boys
In 1984, Oskar was ranked #369 and Tadeusz #648 among boys in Norway.
Oskar and Tadeusz over time
Oskar and Tadeusz appear together in 2 published lists, across 52 years of shared records. Oskar held the stronger position in more years in 2 of them, Tadeusz in 0.
In none of those lists did their order change and stay changed.
Oskar reached its own highest recorded position earlier in 1 of those lists, and Tadeusz 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
Oskar and Tadeusz changed places 10 times in Norway · Boys between 1950 and 1984, ending at #369 and #648.
- Longest-running competitions
Oskar and Tadeusz were both ranked in Norway · Boys for 33 years, from 1950 to 1984, ending at #369 and #648.
- Peaked in the same years
Both reached their highest recorded position in Norway · Boys within 2 years — Oskar #193 in 1955, Tadeusz #194 in 1955.
List by list
Norway · Boys33 shared years, 1950–1984
Oskar held the stronger position in 18 of those years, Tadeusz in 15.
Highest recorded here: Oskar #193 in 1955, Tadeusz #194 in 1955.
The order between them never changed and held in this list.
Most recent shared year, 1984: Oskar #369, Tadeusz #648.
England and Wales · Boys19 shared years, 2005–2025
Oskar held the stronger position in 19 of those years, Tadeusz in 0.
Highest recorded here: Oskar #174 in 2009, Tadeusz #1587 in 2019.
The order between them never changed and held in this list.
Most recent shared year, 2025: Oskar #349, Tadeusz #1897.
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.
Where to go next
Comparisons that share a name, a rule or a published list with this one. Each is an existing comparison page with its own evidence — nothing here says these pairs are alike.
Other comparisons involving Oskar
Pairs where Oskar shares a published list with another name, each measured inside one registrar's own list.
- Anders vs Oskar
Anders and Oskar were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #293 and #21.
Anders · Oskar · 81 shared years, 1945–2025 · Longest-running competitions
- Andreas vs Oskar
Andreas and Oskar were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #96 and #21.
Andreas · Oskar · 81 shared years, 1945–2025 · Longest-running competitions
- Arne vs Oskar
Arne and Oskar were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #222 and #21.
Arne · Oskar · 81 shared years, 1945–2025 · Longest-running competitions
- Bjørn vs Oskar
Bjørn and Oskar were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #56 and #21.
Bjørn · Oskar · 81 shared years, 1945–2025 · Longest-running competitions
Side by side
| Field | Oskar | Tadeusz |
|---|---|---|
| Record type | Editorially researched profile | Official statistical record (evidence-only) |
| Gender usage | male | male |
| Meaning | The origin is genuinely disputed between two theories: one traces it to an Old Irish phrase commonly rendered as 'deer friend'; the other links it to a Germanic compound commonly interpreted as 'god's spear', possibly brought to Ireland by Norse settlers. | Not yet recorded |
| Origin | Disputed — possibly Old Irish, possibly Old English/Old Norse | Not yet recorded |
| Pronunciation | /ˈɔs.kar/ | 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, NO | GB-ENW, IE, NO |
| Most recent popularity observation | Norway · Boys #21 (2025) | England and Wales · Boys #1897 (2025) |
| Pronunciation clarity (demonstration score) | 90/100 | Not yet recorded |
| Spelling simplicity (demonstration score) | 94/100 | 82/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Oskar has a recorded origin (Disputed — possibly Old Irish, possibly Old English/Old Norse); Tadeusz does not have one recorded yet.
- Oskar and Tadeusz both have 2 syllables.
- A meaning is recorded for Oskar; Tadeusz doesn't have one written yet.
- Both names have recorded usage in GB-ENW, IE, NO.
How each name got here
Oskar
Popularity journey
First recorded1945
First recorded at #201 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: #15 among boys in Norway, in 2021 (recorded 1945–2025).
Norway · Boys
Most recent2025
Most recently recorded at #349 among boys in England and Wales, in 2025.
England and Wales · Boys
Tadeusz
Popularity journey
First recorded1950
First recorded at #339 among boys in Norway in 1950 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1950–1984
Highest recorded position: #194 among boys in Norway, in 1955 (recorded 1950–1984).
Norway · Boys
Most recent2025
Most recently recorded at #1897 among boys in England and Wales, in 2025.
England and Wales · Boys