Casian
- Gender
- Boy
- Say it
- ka-see-AN
- Origin
- Latin
- UK rank, 2025
- #1,423 for boys
Casian is a boys' name of Latin origin, meaning “of the Cassius family”. In 2025 it ranked 1,423rd for boys in the UK (20 babies).
What does Casian mean?
Latin: Romanian form of Cassian, from Roman Cassianus
“of the Cassius family”
The Romanian form of Cassian, from the Roman name Cassianus.
Is Casian a girl's or a boy's name?
Casian is a boys' name. In 2025, it was given to 20 boys in the UK. Too few girls were given it to be listed.
How popular is Casian in the UK?
- Rank in 2025
- #1,423among boys
- Babies in 2025
- 20about 1 in 15,000 boys
- Five-year trend
- Steadydown 24% in five years
- Same name in a class
- under 1%chance among 15 boys
In 2025, 20 boys in the UK were named Casian, making it the 1,423rd most popular name for boys. Five years earlier, in 2020, it was 914th. Its busiest year was 2020, with 35 boys.
Half of all the boys named Casian in the UK since 1996 were born between 2018 and 2023, the years shaded on the chart below.
Among boys in 2025, it was 1,358th in England and Wales.
Casian in the UK, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 20 | #1,423 |
| 2024 | 17 | #1,585 |
| 2023 | 22 | #1,322 |
| 2022 | 22 | #1,312 |
| 2021 | 24 | #1,227 |
| 2020 | 35 | #914 |
| 2019 | 16 | #1,608 |
| 2018 | 27 | #1,119 |
| 2017 | 16 | #1,649 |
| 2016 | 9 | #2,468 |
| 2015 | 8 | #2,614 |
| 2014 | 0 | – |
| 2013 | 3 | #4,884 |
| 2012 | 0 | – |
| 2011 | 1 | #6,218 |
Names like Casian
Names given in the same years and the same naming tradition, with a similar sound.
Cassian Finn Conan Brody Cillian Ronan Conn Caelan Conlan Callan Rowan Kayden
Names related to Casian
More Latin names
Oliver Olivia Leo Roman Aurora Emily Florence Mabel Luna Nora Rosie Emilia Max Nova Lucy Julian
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, “Casian: name meaning, origin and popularity”, https://www.nameling.co.uk/names/casian, updated 20 October 2026.