Kacper vs Leo
Kacper 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.
England and Wales · Boys
In 2024, Kacper was ranked #773 and Leo #5 among boys in England and Wales.
Scotland · Boys
In 2024, Kacper was ranked #619 and Leo #5 among boys in Scotland.
Northern Ireland · Boys
In 2021, Kacper was ranked #433 and Leo #7 among boys in Northern Ireland.
Republic of Ireland · Boys
In 2025, Kacper was ranked #829 and Leo #10 among boys in Republic of Ireland.
Norway · Boys
In 2025, Kacper was ranked #433 and Leo #28 among boys in Norway.
Kacper and Leo over time
Kacper and Leo appear together in 4 published lists, across 97 years of shared records. Leo held the stronger position in more years in 4 of them, Kacper 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.
Kacper reached its own highest recorded position earlier in 4 of those lists, and Leo 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.
- One moved ahead of the other
In 2000, Leo moved ahead of Kacper in Norway · Boys — #213 and #281 the year before became #203 and #192.
- Mirrored each other
Over 22 shared years in Republic of Ireland · Boys, Leo rose about as far as Kacper fell — from #506 and #104 in 2004 to #829 and #10 in 2025.
- Longest-running competitions
Kacper and Leo were both ranked in Norway · Boys for 36 years, from 1984 to 2025, ending at #433 and #28.
List by list
Norway · Boys36 shared years, 1984–2025
Kacper held the stronger position in 2 of those years, Leo in 34.
Highest recorded here: Kacper #173 in 2004, Leo #28 in 2025.
The order changed in 2000: Leo moved ahead. In 1999 they stood at #213 and #281; by 2000 that had become #203 and #192.
Most recent shared year, 2025: Kacper #433, Leo #28.
England and Wales · Boys24 shared years, 2001–2024
Kacper held the stronger position in 0 of those years, Leo in 24.
Highest recorded here: Kacper #158 in 2008, Leo #5 in 2022.
The order between them never changed and held in this list.
Most recent shared year, 2024: Kacper #773, Leo #5.
Republic of Ireland · Boys22 shared years, 2004–2025
Kacper held the stronger position in 2 of those years, Leo in 20.
Highest recorded here: Kacper #92 in 2008, Leo #10 in 2025.
The order between them never changed and held in this list.
Most recent shared year, 2025: Kacper #829, Leo #10.
Northern Ireland · Boys15 shared years, 2006–2021
Kacper held the stronger position in 0 of those years, Leo in 15.
Highest recorded here: Kacper #136 in 2009, Leo #7 in 2021.
The order between them never changed and held in this list.
Most recent shared year, 2021: Kacper #433, Leo #7.
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 | Kacper | 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 | Not yet recorded | /ˈliːoʊ/ |
| Syllables | 2 | 1 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, GB-SCT, IE, NO | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | Norway · Boys #433 (2025) | New South Wales, Australia · Boys #5 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 88/100 | 95/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Leo has a recorded origin (Latin); Kacper does not have one recorded yet.
- Kacper has 2 syllables, compared with 1 for Leo.
- A meaning is recorded for Leo; Kacper doesn't have one written yet.
- Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE, NO.
How each name got here
Kacper
Popularity journey
First recorded1984
First recorded at #624 among boys in Norway in 1984 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded2004–2025
Highest recorded position: #92 among boys in Republic of Ireland, in 2008 (recorded 2004–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #433 among boys in Norway, in 2025.
Norway · 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