Given name

Katja

“one who is pure; virginal”

Katja is a variant of Katherine. In Greek use, Katherine carries the interpretation “one who is pure; virginal.”

Original RussianКатя

Meaning & origin

What it means

Katja is a variant of Katherine. In Greek use, Katherine carries the interpretation “one who is pure; virginal.”

Explained through its name family

Where it comes from

Katja comes from Russian.

Adapted from Wiktionary (CC BY-SA 4.0)

How it developed

In Slovenian usage, Katja is a diminutive of Katarina.

The story

Published U.S. birth records include this spelling as early as 1963. This is the earliest published observation available here, rather than a date for the name’s origin. Katja is a variant of Katherine. The history of Katherine gives this family its wider story. Katherine’s historical associations include Catherine de’ Medici, wife of King Henry II and regent.

Combines direct and name-family evidence

Katja through the years

Babies since 1880
949
0 boys · 949 girls
Most popular year
1998
48 babies
2025
5
#16,086 for girls
2021–25 vs 2016–20
−35%
Easing
0102030198020002025Highest share 19983.1
Katja in U.S. Social Security birth records, 1963–2025, per million girls born. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.

By the numbers

In 2025, this name appeared in 5 U.S. birth records for girls, ranking No. 16,086 among girls’ names. Average annual use for girls was 34.8% lower in 2021–2025 than in 2016–2020. Its largest published annual count for girls was 48 in 1998. Published U.S. population figures for this spelling include 1,805 as a first name in 2020.

From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.

Katja’s family of names

In Slovenian usage, Katja is a diminutive of Katarina. In Finnish usage, Katja shares a linguistic root with the English form Katya. Katja has a related form in Katherine.

Walk Katja’s family in the name graph

KatjaKatjahKatherineKatarinaKatiaKatiKatjanaCatherineKarenCatalinaKateKatieKatrinaKathyCathyKarinKaterinaCatarinaKatyKatyaCaterinaEkaterinaKatharinaKathrineCathrynCarinKathieKatarzynaCathieCatharineKaisa

Inner ring: spellings · middle: nicknames and forms · outer: across languages.

Hover or tab through the constellation to see how each name is related. Bigger dots are names more people in the U.S. share.

Around the world

Katja has relatives in 8 languages. Lines run from its Russian roots to each of them.

GermanRussian

Russianwhere Katja comes from · 1 name

Each dot marks where a language is rooted, not where people with the name live today. Bigger dots hold more names. Language locations from Glottolog (CC BY 4.0); map from Natural Earth.

Appears in

Similar names

If you love Katja, these share its style, era, origin or sound, from outside its own family.

Russian · Modern

Raija

Raija is a feminine given name from Russian. It is used in Finnish.

0Not recently recorded

>99% girls

Latin · Modern

Natasja

“birthday”

0Not recently recorded

>99% girls

Russian · Modern

Nastasja

Nastasja is a feminine given name from Russian. It is used in Ingrian.

0Not recently recorded

>99% girls

Modern

Kaitlyn

“one who is pure; virginal”

53UncommonCooling

>99% girls

Irish · Modern

Katelyn

“one who is pure; virginal”

48UncommonCooling

>99% girls

Ancient Greek · Modern

Tarja

Tarja is a feminine given name from Russian, ultimately from Ancient Greek. It is used in Finnish.

0Not recently recorded

>99% girls

Modern

Princessa

“a highborn daughter; born to royalty”

0Not recently recorded

>99% girls

Russian · Modern

Taniya

Taniya is a feminine given name from Russian.

23RareCooling

>99% girls

Sibling ideas

Names that share Katja’s feel without repeating its first letter or rhyming with it.