Aria vs Kaj

Aria and Kajcompared 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 2021, Aria was ranked #3451 and Kaj #4789 among boys in England and Wales.

Aria and Kaj over time

Aria and Kaj appear together in 1 published list, across 11 years of shared records. Aria held the stronger position in more years in 1 of them, Kaj 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.

Kaj reached its own highest recorded position earlier in 1 of those lists, and Aria 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.

List by list

England and Wales · Boys11 shared years, 1996–2021
Aria held the stronger position in 9 of those years, Kaj in 1.
Highest recorded here: Aria #1851 in 2005, Kaj #2357 in 1996.
The order changed in 2000: Aria moved ahead. In 1999 they stood at #2943 and #2943; by 2000 that had become #2501 and #3036.
Most recent shared year, 2021: Aria #3451, Kaj #4789.

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 Aria

Pairs where Aria shares a published list with another name, each measured inside one registrar's own list.

Aria vs Daisy
Aria and Daisy both rose over the same years in 5 registrars — England and Wales · Girls; New South Wales, Australia · Girls; New Zealand · Girls; Northern Ireland · Girls; Republic of Ireland · Girls. Each list is measured against its own starting position; the positions are never combined.
Aria · Daisy · 30 shared years, 1996–2025 · Moved together in several countries
Ada vs Aria
Ada and Aria both rose over the same years in 4 registrars — England and Wales · Girls; Northern Ireland · Girls; Norway · Girls; Republic of Ireland · Girls. Each list is measured against its own starting position; the positions are never combined.
Ada · Aria · 30 shared years, 1996–2025 · Moved together in several countries
Aria vs Aurora
Aria and Aurora both rose over the same years in 4 registrars — England and Wales · Girls; Northern Ireland · Girls; Norway · Girls; Republic of Ireland · Girls. Each list is measured against its own starting position; the positions are never combined.
Aria · Aurora · 30 shared years, 1996–2025 · Moved together in several countries
Elsie vs Aria
Elsie and Aria both rose over the same years in 4 registrars — England and Wales · Girls; New South Wales, Australia · Girls; Northern Ireland · Girls; Republic of Ireland · Girls. Each list is measured against its own starting position; the positions are never combined.
Elsie · Aria · 30 shared years, 1996–2025 · Moved together in several countries

Side by side

Side-by-side comparison of Aria, Kaj
Field	Aria	Kaj
Record type	Official statistical record (evidence-only)	Official statistical record (evidence-only)
Gender usage	female	male
Meaning	Not yet recorded	Not yet recorded
Origin	Not yet recorded	Not yet recorded
Pronunciation	Not yet recorded	Not yet recorded
Syllables	2	1
Common variants / nicknames	Not yet recorded	Not yet recorded
Recorded regional usage	AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ	GB-ENW, IE, NO
Most recent popularity observation	New South Wales, Australia · Girls #29 (2025)	Republic of Ireland · Boys #770 (2023)
Pronunciation clarity (demonstration score)	Not yet recorded	Not yet recorded
Spelling simplicity (demonstration score)	95/100	95/100
International familiarity (demonstration score)	100/100	100/100
Data Confidence	medium	medium

What the data shows

Aria has 2 syllables, compared with 1 for Kaj.
Both names have recorded usage in GB-ENW, IE, NO.

How each name got here

Aria

Popularity journey

First recorded1996
First recorded at #2683 among girls in England and Wales in 1996 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Girls
Highest recorded2007–2023
Highest recorded position: #11 among girls in New Zealand, in 2018 (recorded 2007–2023).
New Zealand · Girls
Most recent2025
Most recently recorded at #29 among girls in New South Wales, Australia, in 2025.
New South Wales, Australia · Girls

Kaj

Popularity journey

First recorded1945
First recorded at #320 among boys in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1945–1994
Highest recorded position: #216 among boys in Norway, in 1959 (recorded 1945–1994).
Norway · Boys
Most recent2021
Most recently recorded at #4789 among boys in England and Wales, in 2021.
England and Wales · Boys