Name Generator
How popular is the name Katja?
Births per year, rank history and how many Katjas are alive today.
Katja (female) is a shortened form of the name Katrina (and sometimes of Katie). Katja itself was last registered for 3 babies in 2016; most Katjas are registered as Katrina, which ranked 2278th in 2025 with 12 babies.
Most people called Katja are registered as Katrina, and share that name's profile: the Katrina you are most likely to meet is around 30 years old. Half of all Katrinas born in England and Wales are between 24 and 34, and there are at least 4,100 of them alive today. Only some Katrinas go by Katja.
How many babies are named Katja or Katrina each year?
Combined registrations of Katrina, Katja. Figures before 1996 are estimates.
Where does Katrina rank as a registered name?
Where does Katja rank as a registered name?
Where this data comes from
Figures from 1996 onwards are the Office for National Statistics' annual baby-name registrations for England and Wales, which record every name given to three or more babies in a year. Figures before 1996 are estimates: the ONS published only top-100 rankings at ten-year intervals back to 1904, so counts for those years are modelled from the rankings, calibrated against Douglas Galbi's long-run research into English name frequencies, and shown with an uncertainty band. Estimates of living bearers combine these birth figures with national life tables and ONS mid-year population estimates.
One limit worth naming: these figures count names as registered at birth. Anyone who changes their name later in life - including trans people, and anyone who adopts a different name by deed poll or simply by use - is not reflected here. Birth registrations record where a name began, not the name a person lives with.
Common questions
Is Katja short for Katrina?
Yes - Katja is a shortened form of Katrina. It is also used for Katie. Katjas are usually registered as Katrina at birth.
When was the name Katja most popular?
The full name Katrina peaked in 1996, when 258 babies in England and Wales were given the name. Katja itself peaked as a registered name in 1997, with 10 babies.
How many people are called Katja?
There's no official count of people who go by Katja, because it's a nickname rather than a registered name. What we can say: at least 4,100 people registered as Katrina born in England and Wales are alive today, and some of them go by Katja.
How old is the typical Katja?
Most people called Katja are registered as Katrina. Most living Katrinas are between 24 and 34; the most common age is about 30.
Is Katja becoming more or less popular?
Declining: recent figures are a fraction of the 1996 peak.