Frederick vs Leo
Frederick and Leocompared 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.
New Zealand · Boys
In 2022, Frederick was ranked #93 and Leo #3 among boys in New Zealand.
England and Wales · Boys
In 2024, Frederick was ranked #55 and Leo #5 among boys in England and Wales.
New South Wales, Australia · Boys
In 2025, Frederick was ranked #78 and Leo #5 among boys in New South Wales, Australia.
Scotland · Boys
In 2024, Frederick was ranked #218 and Leo #5 among boys in Scotland.
Republic of Ireland · Boys
In 2025, Frederick was ranked #329 and Leo #10 among boys in Republic of Ireland.
Northern Ireland · Boys
In 2024, Frederick was ranked #339 and Leo #12 among boys in Northern Ireland.
Frederick and Leo over time
Frederick and Leo appear together in 3 published lists, across 112 years of shared records. Leo held the stronger position in more years in 3 of them, Frederick 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.
Frederick reached its own highest recorded position earlier in 2 of those lists, Leo in 1. 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 2001, Leo moved ahead of Frederick in England and Wales · Boys — #114 and #142 the year before became #110 and #101.
- Closest over the longest run
Across 29 shared years in England and Wales · Boys, Frederick and Leo averaged 56.2 places apart, ending at #55 and #5.
- Longest-running competitions
Frederick and Leo were both ranked in Republic of Ireland · Boys for 60 years, from 1964 to 2025, ending at #329 and #10.
- Peaked in the same years
Both reached their highest recorded position in England and Wales · Boys within 2 years — Frederick #55 in 2024, Leo #5 in 2022.
- Started together, ended far apart
In 1964 they stood at #105 and #101 in Republic of Ireland · Boys, 4 places apart; by 2025 they were #329 and #10.
List by list
Republic of Ireland · Boys60 shared years, 1964–2025
Frederick held the stronger position in 0 of those years, Leo in 60.
Highest recorded here: Frederick #105 in 1964, Leo #10 in 2025.
The order between them never changed and held in this list.
Most recent shared year, 2025: Frederick #329, Leo #10.
England and Wales · Boys29 shared years, 1996–2024
Frederick held the stronger position in 5 of those years, Leo in 24.
Highest recorded here: Frederick #55 in 2024, Leo #5 in 2022.
The order changed in 2001: Leo moved ahead. In 2000 they stood at #114 and #142; by 2001 that had become #110 and #101.
Most recent shared year, 2024: Frederick #55, Leo #5.
Northern Ireland · Boys23 shared years, 1998–2024
Frederick held the stronger position in 0 of those years, Leo in 23.
Highest recorded here: Frederick #171 in 2018, Leo #6 in 2023.
The order between them never changed and held in this list.
Most recent shared year, 2024: Frederick #339, Leo #12.
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 | Frederick | Leo |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Editorially researched profile |
| Gender usage | male | male |
| Meaning | Not yet recorded | Lion. |
| Origin | Not yet recorded | Latin |
| Pronunciation | /ˈliːoʊ/ | |
| Syllables | 3 | 1 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZ | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | New South Wales, Australia · Boys #78 (2025) | New South Wales, Australia · Boys #5 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 70/100 | 95/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Leo has a recorded origin (Latin); Frederick does not have one recorded yet.
- Frederick has 3 syllables, compared with 1 for Leo.
- A meaning is recorded for Leo; Frederick doesn't have one written yet.
- Both names have recorded usage in AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZ.
How each name got here
Frederick
Popularity journey
First recorded1952
First recorded at #68 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 recorded1996–2024
Highest recorded position: #55 among boys in England and Wales, in 2024 (recorded 1996–2024).
England and Wales · Boys
Most recent2025
Most recently recorded at #78 among boys in New South Wales, Australia, in 2025.
New South Wales, Australia · Boys
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 recorded2009–2025
Highest recorded position: #3 among boys in New South Wales, Australia, in 2022 (recorded 2009–2025).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #5 among boys in New South Wales, Australia, in 2025.
New South Wales, Australia · Boys