Kajsa vs Leah
Kajsa and Leahcompared 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.
Norway · Girls
In 2025, Kajsa was ranked #265 and Leah #12 among girls in Norway.
Kajsa and Leah over time
Kajsa and Leah appear together in 1 published list, across 37 years of shared records. Leah held the stronger position in more years in 1 of them, Kajsa 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.
Kajsa reached its own highest recorded position earlier in 1 of those lists, and Leah 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
Kajsa and Leah changed places 5 times in Norway · Girls between 1984 and 2025, ending at #265 and #12.
- Longest-running competitions
Kajsa and Leah were both ranked in Norway · Girls for 37 years, from 1984 to 2025, ending at #265 and #12.
List by list
Norway · Girls37 shared years, 1984–2025
Kajsa held the stronger position in 7 of those years, Leah in 30.
Highest recorded here: Kajsa #159 in 2003, Leah #12 in 2025.
The order changed in 2000: Leah moved ahead. In 1999 they stood at #294 and #351; by 2000 that had become #299 and #207.
Most recent shared year, 2025: Kajsa #265, Leah #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 | Kajsa | Leah |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Editorially researched profile |
| Gender usage | female | female |
| Meaning | Not yet recorded | Likely derives from a Hebrew word meaning 'weary, grieved'; an alternative theory suggests a connection to Akkadian 'littu' ('cow'). In the Old Testament, Leah was Jacob's first wife. |
| Origin | Not yet recorded | Biblical Hebrew, etymology disputed |
| Pronunciation | Not yet recorded | /ˈliː.ə/ |
| Syllables | 2 | 1 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | NO | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | Norway · Girls #265 (2025) | Norway · Girls #12 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 94/100 | 95/100 |
| International familiarity (demonstration score) | 40/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Leah has a recorded origin (Biblical Hebrew, etymology disputed); Kajsa does not have one recorded yet.
- Kajsa has 2 syllables, compared with 1 for Leah.
- A meaning is recorded for Leah; Kajsa doesn't have one written yet.
- Both names have recorded usage in NO.
How each name got here
Kajsa
Popularity journey
First recorded1979
First recorded at #576 among girls in Norway in 1979 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1979–2025
Highest recorded position: #159 among girls in Norway, in 2003 (recorded 1979–2025).
Norway · Girls
Most recent2025
Most recently recorded at #265 among girls in Norway, in 2025.
Norway · Girls
Leah
Popularity journey
First recorded1966
First recorded at #310 among girls in Republic of Ireland in 1966 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded1966–2025
Highest recorded position: #9 among girls in Republic of Ireland, in 2004 (recorded 1966–2025).
Republic of Ireland · Girls
Most recent2025
Most recently recorded at #89 among girls in New South Wales, Australia, in 2025.
New South Wales, Australia · Girls