Leo vs Oscar
Leo and Oscarcompared 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.
England and Wales · Boys
In 2025, Leo was ranked #3 and Oscar #8 among boys in England and Wales.
New South Wales, Australia · Boys
In 2025, Leo was ranked #5 and Oscar #17 among boys in New South Wales, Australia.
New Zealand · Boys
In 2023, Leo was ranked #5 and Oscar #20 among boys in New Zealand.
Scotland · Boys
In 2024, Leo was ranked #5 and Oscar #22 among boys in Scotland.
Republic of Ireland · Boys
In 2025, Leo was ranked #10 and Oscar #31 among boys in Republic of Ireland.
Northern Ireland · Boys
In 2024, Leo was ranked #12 and Oscar #34 among boys in Northern Ireland.
Norway · Boys
In 2025, Leo was ranked #28 and Oscar #51 among boys in Norway.
Leo and Oscar over time
Leo and Oscar appear together in 6 published lists, across 186 years of shared records. Leo held the stronger position in more years in 4 of them, Oscar in 2.
The order between them changed and held in 3 of those lists — a change in that published list, never a claim that one name displaced the other.
Oscar reached its own highest recorded position earlier in 4 of those lists, Leo in 2. 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 2017, Leo moved ahead of Oscar in England and Wales · Boys — #13 and #10 the year before became #7 and #8.
- Repeatedly exchanged positions
Leo and Oscar changed places 4 times in Northern Ireland · Boys between 1999 and 2024, ending at #12 and #34.
- Closest over the longest run
Across 30 shared years in England and Wales · Boys, Leo and Oscar averaged 19.3 places apart, ending at #3 and #8.
- Longest-running competitions
Leo and Oscar were both ranked in England and Wales · Boys for 30 years, from 1996 to 2025, ending at #3 and #8.
List by list
Norway · Boys55 shared years, 1951–2025
Leo held the stronger position in 12 of those years, Oscar in 43.
Highest recorded here: Leo #28 in 2025, Oscar #35 in 2013.
The order between them never changed and held in this list.
Most recent shared year, 2025: Leo #28, Oscar #51.
Republic of Ireland · Boys38 shared years, 1969–2025
Leo held the stronger position in 23 of those years, Oscar in 14.
Highest recorded here: Leo #10 in 2025, Oscar #30 in 2021.
The order between them never changed and held in this list.
Most recent shared year, 2025: Leo #10, Oscar #31.
England and Wales · Boys30 shared years, 1996–2025
Leo held the stronger position in 12 of those years, Oscar in 18.
Highest recorded here: Leo #3 in 2025, Oscar #7 in 2013.
The order changed in 2017: Leo moved ahead. In 2016 they stood at #13 and #10; by 2017 that had become #7 and #8.
Most recent shared year, 2025: Leo #3, Oscar #8.
Northern Ireland · Boys25 shared years, 1999–2024
Leo held the stronger position in 23 of those years, Oscar in 2.
Highest recorded here: Leo #6 in 2023, Oscar #24 in 2014.
The order between them never changed and held in this list.
Most recent shared year, 2024: Leo #12, Oscar #34.
New Zealand · Boys21 shared years, 2003–2023
Leo held the stronger position in 13 of those years, Oscar in 8.
Highest recorded here: Leo #3 in 2019, Oscar #11 in 2022.
The order changed in 2011: Leo moved ahead. In 2010 they stood at #42 and #40; by 2011 that had become #36 and #47.
Most recent shared year, 2023: Leo #5, Oscar #20.
New South Wales, Australia · Boys17 shared years, 2009–2025
Leo held the stronger position in 11 of those years, Oscar in 6.
Highest recorded here: Leo #3 in 2022, Oscar #17 in 2025.
The order changed in 2015: Leo moved ahead. In 2014 they stood at #28 and #27; by 2015 that had become #25 and #26.
Most recent shared year, 2025: Leo #5, Oscar #17.
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 Leo
Pairs where Leo shares a published list with another name, each measured inside one registrar's own list.
- Leo vs Keith
In 1964 they stood at #101 and #96 in Republic of Ireland · Boys, 5 places apart; by 2025 they were #10 and #577.
Leo · Keith · 59 shared years, 1964–2025 · Started together, ended far apart
- Leo vs Jonathan
Over 62 shared years in Republic of Ireland · Boys, Leo rose about as far as Jonathan fell — from #101 and #125 in 1964 to #10 and #223 in 2025.
Leo · Jonathan · 62 shared years, 1964–2025 · Mirrored each other
- Leo vs Marcus
Over 62 shared years in Republic of Ireland · Boys, Leo rose about as far as Marcus fell — from #101 and #136 in 1964 to #10 and #232 in 2025.
Leo · Marcus · 62 shared years, 1964–2025 · Mirrored each other
- Leo vs Shane
Over 62 shared years in Republic of Ireland · Boys, Leo rose about as far as Shane fell — from #101 and #75 in 1964 to #10 and #152 in 2025.
Leo · Shane · 62 shared years, 1964–2025 · Mirrored each other
Other comparisons involving Oscar
Pairs where Oscar shares a published list with another name, each measured inside one registrar's own list.
- Oscar vs Taylor
In 1996 they stood at #128 and #121 in England and Wales · Boys, 7 places apart; by 2025 they were #8 and #507.
Oscar · Taylor · 30 shared years, 1996–2025 · Started together, ended far apart
- Oscar vs Hayden
In 1996 they stood at #128 and #124 in England and Wales · Boys, 4 places apart; by 2025 they were #8 and #314.
Oscar · Hayden · 30 shared years, 1996–2025 · Started together, ended far apart
- Morten vs Oscar
Over 75 shared years in Norway · Boys, Oscar rose about as far as Morten fell — from #107 and #263 in 1945 to #214 and #51 in 2025.
Morten · Oscar · 75 shared years, 1945–2025 · Mirrored each other
- Peter vs Oscar
Over 75 shared years in Norway · Boys, Oscar rose about as far as Peter fell — from #106 and #263 in 1945 to #174 and #51 in 2025.
Peter · Oscar · 75 shared years, 1945–2025 · Mirrored each other
Other pairs with the same kind of relationship
Pairs that qualify under the same rule as this one — one moved ahead of the other.
- Amelia vs Emily
In 2011, Amelia moved ahead of Emily in England and Wales · Girls — #5 and #3 the year before became #1 and #5.
Amelia · Emily · 30 shared years, 1996–2025 · One moved ahead of the other
- Amelia vs Sophie
In 2011, Amelia moved ahead of Sophie in England and Wales · Girls — #5 and #2 the year before became #1 and #6.
Amelia · Sophie · 30 shared years, 1996–2025 · One moved ahead of the other
- Sarah vs Angela
In 1974, Sarah moved ahead of Angela in New Zealand · Girls — #6 and #5 the year before became #1 and #6.
Sarah · Angela · 36 shared years, 1958–1998 · One moved ahead of the other
- Emma vs Aoife
In 2003, Emma moved ahead of Aoife in Republic of Ireland · Girls — #4 and #2 the year before became #1 and #3.
Emma · Aoife · 62 shared years, 1964–2025 · One moved ahead of the other
Other pairs from England and Wales lists
Pairs measured inside England and Wales's own published lists, where this pair's strongest relationship is also recorded. Positions in these lists are not comparable with another registrar's.
- Grace vs Gemma
In 1996 they stood at #41 and #50 in England and Wales · Girls, 9 places apart; by 2025 they were #27 and #4867.
Grace · Gemma · 30 shared years, 1996–2025 · Started together, ended far apart
- Ella vs Gemma
In 1996 they stood at #56 and #50 in England and Wales · Girls, 6 places apart; by 2025 they were #46 and #4867.
Ella · Gemma · 30 shared years, 1996–2025 · Started together, ended far apart
- Jasmine vs Gemma
In 1996 they stood at #55 and #50 in England and Wales · Girls, 5 places apart; by 2025 they were #102 and #4867.
Jasmine · Gemma · 30 shared years, 1996–2025 · Started together, ended far apart
- Anna vs Gemma
In 1996 they stood at #47 and #50 in England and Wales · Girls, 3 places apart; by 2025 they were #142 and #4867.
Anna · Gemma · 30 shared years, 1996–2025 · Started together, ended far apart
Other pairs ranked together in the 2020s
Pairs both ranked in the same published list at some point between 2020 and 2029.
- Hayley vs Gemma
In 1996 they stood at #57 and #50 in England and Wales · Girls, 7 places apart; by 2025 they were #478 and #4867.
Hayley · Gemma · 30 shared years, 1996–2025 · Started together, ended far apart
- Natalie vs Gemma
In 1996 they stood at #42 and #50 in England and Wales · Girls, 8 places apart; by 2025 they were #634 and #4867.
Natalie · Gemma · 30 shared years, 1996–2025 · Started together, ended far apart
- Jennifer vs Gemma
In 1996 they stood at #54 and #50 in England and Wales · Girls, 4 places apart; by 2025 they were #650 and #4867.
Jennifer · Gemma · 30 shared years, 1996–2025 · Started together, ended far apart
- Lily vs Nicola
In 1996 they stood at #85 and #87 in England and Wales · Girls, 2 places apart; by 2025 they were #2 and #4201.
Lily · Nicola · 30 shared years, 1996–2025 · Started together, ended far apart
Side by side
| Field | Leo | Oscar |
|---|---|---|
| Record type | Editorially researched profile | Editorially researched profile |
| Gender usage | male | male |
| Meaning | Lion. | Possibly 'deer friend' (Irish), or possibly derived from an Old English/Old Norse name meaning 'god spear' — the origin is genuinely disputed. |
| Origin | Latin | Disputed — possibly Irish, possibly Old English/Old Norse |
| Pronunciation | /ˈliːoʊ/ | /ˈɑskər/ |
| Syllables | 1 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | England and Wales · Boys #3 (2025) | England and Wales · Boys #8 (2025) |
| Pronunciation clarity (demonstration score) | 90/100 | 90/100 |
| Spelling simplicity (demonstration score) | 95/100 | 94/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Leo is recorded with a Latin origin, while Oscar is recorded with a Disputed — possibly Irish, possibly Old English/Old Norse origin.
- Leo has 1 syllable, compared with 2 for Oscar.
- Leo's recorded meaning differs from Oscar's — see the table above for each.
- Both names have recorded usage in AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ.
How each name got here
Leo
Popularity journey
First recorded1947
First recorded at #303 among boys in Norway in 1947 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1996–2025
Highest recorded position: #3 among boys in England and Wales, in 2025 (recorded 1996–2025).
England and Wales · Boys
Most recent2025
Most recently recorded at #4867 among girls in England and Wales, in 2025.
England and Wales · Girls
Oscar
Popularity journey
First recorded1945
First recorded at #263 among boys in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1996–2025
Highest recorded position: #7 among boys in England and Wales, in 2013 (recorded 1996–2025).
England and Wales · Boys
Most recent2025
Most recently recorded at #8 among boys in England and Wales, in 2025.
England and Wales · Boys