Katja vs Luca

Katja and Lucacompared 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 · Girls
In 2016, Katja was ranked #5785 and Luca #3609 among girls in England and Wales.

Katja and Luca over time

Katja and Luca appear together in 1 published list, across 16 years of shared records. Luca held the stronger position in more years in 1 of them, Katja 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.

Katja reached its own highest recorded position earlier in 1 of those lists, and Luca 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
Katja and Luca changed places 7 times in England and Wales · Girls between 1996 and 2016, ending at #5785 and #3609.

List by list

England and Wales · Girls16 shared years, 1996–2016
Katja held the stronger position in 5 of those years, Luca in 10.
Highest recorded here: Katja #1666 in 1997, Luca #1628 in 2003.
The order changed in 2015: Luca moved ahead. In 2014 they stood at #2969 and #3285; by 2015 that had become #4103 and #2328.
Most recent shared year, 2016: Katja #5785, Luca #3609.

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 Luca

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

Oliver vs Luca
Oliver and Luca both rose over the same years in 6 registrars — England and Wales · Boys; New South Wales, Australia · Boys; New Zealand · Boys; Northern Ireland · Boys; Norway · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Oliver · Luca · 43 shared years, 1973–2025 · Moved together in several countries
Luca vs Archie
Luca and Archie both rose over the same years in 5 registrars — England and Wales · Boys; New South Wales, Australia · Boys; New Zealand · Boys; Northern Ireland · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Luca · Archie · 30 shared years, 1996–2025 · Moved together in several countries
Arthur vs Luca
Arthur and Luca both rose over the same years in 5 registrars — England and Wales · Boys; New Zealand · Boys; Northern Ireland · Boys; Norway · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Arthur · Luca · 41 shared years, 1974–2025 · Moved together in several countries
Luca vs Hugo
Luca and Hugo both rose over the same years in 5 registrars — England and Wales · Boys; New South Wales, Australia · Boys; New Zealand · Boys; Northern Ireland · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Luca · Hugo · 30 shared years, 1996–2025 · Moved together in several countries

Side by side

Side-by-side comparison of Katja, Luca
Field	Katja	Luca
Record type	Official statistical record (evidence-only)	Editorially researched profile
Gender usage	female	male
Meaning	Not yet recorded	The Italian and Romanian form of Lucas, itself probably a shortened form of the Greek 'Loukanos', meaning 'from Lucania' (a region of southern Italy).
Origin	Not yet recorded	Italian, via Greek Loukas
Pronunciation	Not yet recorded	/ˈluːkə/
Syllables	2	2
Common variants / nicknames	Not yet recorded	Not yet recorded
Recorded regional usage	GB-ENW, NO	AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ
Most recent popularity observation	Norway · Girls #496 (2017)	New South Wales, Australia · Boys #4 (2025)
Pronunciation clarity (demonstration score)	Not yet recorded	90/100
Spelling simplicity (demonstration score)	94/100	95/100
International familiarity (demonstration score)	60/100	100/100
Data Confidence	medium	medium

What the data shows

Luca has a recorded origin (Italian, via Greek Loukas); Katja does not have one recorded yet.
Katja and Luca both have 2 syllables.
A meaning is recorded for Luca; Katja doesn't have one written yet.
Both names have recorded usage in GB-ENW, NO.

How each name got here

Katja

Popularity journey

First recorded1967
First recorded at #515 among girls in Norway in 1967 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1967–2017
Highest recorded position: #229 among girls in Norway, in 1975 (recorded 1967–2017).
Norway · Girls
Most recent2017
Most recently recorded at #496 among girls in Norway, in 2017.
Norway · Girls

Luca

Popularity journey

First recorded1973
First recorded at #603 among boys in Norway in 1973 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded2004–2023
Highest recorded position: #3 among boys in New Zealand, in 2023 (recorded 2004–2023).
New Zealand · Boys
Most recent2025
Most recently recorded at #4 among boys in New South Wales, Australia, in 2025.
New South Wales, Australia · Boys