Erik vs Kai
Erik and Kai compared 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 2025, Erik was ranked #468 and Kai #34 among boys in Republic of Ireland.
Scotland · Boys
In 2024, Erik was ranked #404 and Kai #56 among boys in Scotland.
Norway · Boys
In 2025, Erik was ranked #64 and Kai #282 among boys in Norway.
Northern Ireland · Boys
In 2024, Erik was ranked #404 and Kai #69 among boys in Northern Ireland.
England and Wales · Boys
In 2025, Erik was ranked #408 and Kai #78 among boys in England and Wales.
Erik and Kai over time
Higher on the chart is a stronger position. The scale is logarithmic, so the gap from #1 to #10 is drawn as large as the gap from #100 to #1,000.
Higher on the chart is a stronger position. The scale is logarithmic, so the gap from #1 to #10 is drawn as large as the gap from #100 to #1,000.
Erik and Kai over time
Erik and Kai appear together in 3 published lists, across 136 years of shared records. Kai held the stronger position in more years in 2 of them, Erik in 1.
In none of those lists did their order change and stay changed.
Kai reached its own highest recorded position earlier in 2 of those lists, and Erik 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.
- Longest-running competitions
Erik and Kai were both ranked in England and Wales · Boys for 30 years, from 1996 to 2025, ending at #408 and #78.
- Peaked in the same years
Both reached their highest recorded position in Republic of Ireland · Boys within 2 years — Erik #240 in 2024, Kai #30 in 2024.
List by list
Norway · Boys81 shared years, 1945–2025
Erik held the stronger position in 81 of those years, Kai in 0.
Highest recorded here: Erik #15 in 1981, Kai #57 in 1976.
The order between them never changed and held in this list.
Most recent shared year, 2025: Erik #64, Kai #282.
England and Wales · Boys30 shared years, 1996–2025
Erik held the stronger position in 0 of those years, Kai in 30.
Highest recorded here: Erik #310 in 2021, Kai #56 in 2003.
The order between them never changed and held in this list.
Most recent shared year, 2025: Erik #408, Kai #78.
Republic of Ireland · Boys25 shared years, 2001–2025
Erik held the stronger position in 0 of those years, Kai in 25.
Highest recorded here: Erik #240 in 2024, Kai #30 in 2024.
The order between them never changed and held in this list.
Most recent shared year, 2025: Erik #468, Kai #34.
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 Erik
Pairs where Erik shares a published list with another name, each measured inside one registrar's own list.
- Erik vs Arild
In 1945 they stood at #27 and #32 in Norway · Boys, 5 places apart; by 2025 they were #64 and #489.
Erik · Arild · 75 shared years, 1945–2025 · Started together, ended far apart
- Aksel vs Erik
Aksel and Erik were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #25 and #64.
Aksel · Erik · 81 shared years, 1945–2025 · Longest-running competitions
- Anders vs Erik
Anders and Erik were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #293 and #64.
Anders · Erik · 81 shared years, 1945–2025 · Longest-running competitions
- Andreas vs Erik
Andreas and Erik were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #96 and #64.
Andreas · Erik · 81 shared years, 1945–2025 · Longest-running competitions
Other comparisons involving Kai
Pairs where Kai shares a published list with another name, each measured inside one registrar's own list.
- Aksel vs Kai
Aksel and Kai were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #25 and #282.
Aksel · Kai · 81 shared years, 1945–2025 · Longest-running competitions
- Anders vs Kai
Anders and Kai were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #293 and #282.
Anders · Kai · 81 shared years, 1945–2025 · Longest-running competitions
- Andreas vs Kai
Andreas and Kai were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #96 and #282.
Andreas · Kai · 81 shared years, 1945–2025 · Longest-running competitions
- Arne vs Kai
Arne and Kai were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #222 and #282.
Arne · Kai · 81 shared years, 1945–2025 · Longest-running competitions
Other pairs with the same kind of relationship
Pairs that qualify under the same rule as this one — longest-running competitions.
- Anders vs Aksel
Anders and Aksel were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #293 and #25.
Anders · Aksel · 81 shared years, 1945–2025 · Longest-running competitions
- Andreas vs Aksel
Andreas and Aksel were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #96 and #25.
Andreas · Aksel · 81 shared years, 1945–2025 · Longest-running competitions
- Arne vs Aksel
Arne and Aksel were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #222 and #25.
Arne · Aksel · 81 shared years, 1945–2025 · Longest-running competitions
- Bjørn vs Aksel
Bjørn and Aksel were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #56 and #25.
Bjørn · Aksel · 81 shared years, 1945–2025 · Longest-running competitions
Other pairs from Norway lists
Pairs measured inside Norway's own published lists, where this pair's strongest relationship is also recorded. Positions in these lists are not comparable with another registrar's.
- Ingrid vs Wenche
In 1945 they stood at #27 and #22 in Norway · Girls, 5 places apart; by 2008 they were #6 and #621.
Ingrid · Wenche · 58 shared years, 1945–2008 · Started together, ended far apart
- Anna vs Torill
In 1945 they stood at #38 and #39 in Norway · Girls, 1 places apart; by 2004 they were #10 and #599.
Anna · Torill · 55 shared years, 1945–2004 · Started together, ended far apart
- Ingrid vs Vigdis
In 1945 they stood at #27 and #32 in Norway · Girls, 5 places apart; by 2006 they were #6 and #583.
Ingrid · Vigdis · 52 shared years, 1945–2006 · Started together, ended far apart
- Anna vs Vigdis
In 1945 they stood at #38 and #32 in Norway · Girls, 6 places apart; by 2006 they were #10 and #583.
Anna · Vigdis · 52 shared years, 1945–2006 · 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.
- 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
Side by side
| Field | Erik | Kai |
|---|---|---|
| Record type | Editorially researched profile | Official statistical record (evidence-only) |
| Gender usage | male | male |
| Meaning | Traditionally interpreted as 'eternal ruler' or 'honoured ruler'; historically a name borne by kings of Sweden, Denmark and Norway. | Not yet recorded |
| Origin | Old Norse | Not yet recorded |
| Pronunciation | /ˈeːrɪk/ | Not yet recorded |
| Syllables | 2 | 1 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | England and Wales, Northern Ireland, Scotland, Republic of Ireland, Norway | New South Wales, Australia, England and Wales, Northern Ireland, Scotland, Republic of Ireland, Norway |
| Most recent popularity observation | Norway · Boys #64 (2025) | New South Wales, Australia · Boys #23 (2025) |
| Data Confidence | medium | medium |
What the data shows
- Erik has a recorded origin (Old Norse); Kai does not have one recorded yet.
- Erik has 2 syllables, compared with 1 for Kai.
- A meaning is recorded for Erik; Kai 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
Erik
Popularity journey
First recorded1945
First recorded at #27 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 1981 (recorded 1945–2025).
Norway · Boys
Most recent2025
Most recently recorded at #408 among boys in England and Wales, in 2025.
England and Wales · Boys
Kai
Popularity journey
First recorded1945
First recorded at #76 among boys in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded2002–2025
Highest recorded position: #20 among boys in New South Wales, Australia, in 2023 (recorded 2002–2025).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #4867 among girls in England and Wales, in 2025.
England and Wales · Girls