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Kasjan

Gender
Boy
Say it
KAHS-yahn
Origin
Latin
UK rank, 2025
#5,065 for boys

Kasjan is a boys' name of Latin origin, meaning “of Cassius”. In 2025 it ranked 5,065th for boys in the UK (3 babies).

What does Kasjan mean?

Latin: Polish form of Cassian

“of Cassius”

Polish form of Cassian; Saint John Cassian was an influential 5th-century monk and writer.

Is Kasjan a girl's or a boy's name?

Kasjan is a boys' name. In 2025, it was given to 3 boys in the UK. Too few girls were given it to be listed.

How popular is Kasjan in the UK?

Rank in 2025
5,065th among boys
Babies in 2025
3 about 1 in 100,000 boys
Five-year trend
Too rare to call too few babies to tell
Same name in a class
under 1% chance among 15 boys

In 2025, 3 boys in the UK were named Kasjan, making it the 5,065th most popular name for boys. Five years earlier, in 2020, it was 6,082nd. Its busiest year was 2012, with 8 boys.

2025 had more boys named Kasjan than any year since 2017.

Among boys in 2025, it was 4,974th in England and Wales.

2008Busiest: 8 in 20122025
Kasjan in the UK, year by year
YearBoysRank
20253#5,065
20240–
20230–
20220–
20210–
20202#6,082
20190–
20182#6,210
20175#3,608
20160–
20150–
20143#4,829
20134#4,008
20128#2,595
20114#3,986
20103#4,865
20093#4,691
20081#5,936

Names like Kasjan

Names given in the same years and the same naming tradition, with a similar sound.

More Latin names

Every Latin name

Sources

Figures from Baby names in England and Wales (Office for National Statistics), Babies' first names (National Records of Scotland) and Baby names (Northern Ireland Statistics and Research Agency). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.

To cite this page: Nameling, “Kasjan: name meaning, origin and popularity”, https://www.nameling.co.uk/names/kasjan, updated 20 October 2026.