Nameling

Castin

Gender
Boy
Say it
KAS-tun
Origin
Modern
US rank, 2025
#12,003 for boys

Castin is a boys' name of Modern origin. In 2025 it ranked 12,003rd for boys in the US (5 babies).

Where does Castin come from?

Modern: spelling of Caston; probably a blend of names like Carson and Easton; also an English surname

Meaning borrowed from Caston.

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

Castin is a boys' name. In 2025, it was given to 5 boys in the US. Too few girls were given it to be listed.

How popular is Castin in the US?

Rank in 2025
#12,003among boys
Babies in 2025
5about 1 in 340,000 boys
Five-year trend
Too rare to calltoo few babies to tell
Same name in a class
under 1%chance among 15 boys

In 2025, 5 boys in the US were named Castin, making it the 12,003rd most popular name for boys. Five years earlier, in 2020, it was 8,062nd. Its busiest year was 2017, with 18 boys. It first appears in the records in 2006.

2025 had fewer boys named Castin than any year since 2008.

Half of all the boys named Castin in the US since 1880 were born between 2012 and 2021, the years shaded on the chart below.

In 2025, 67 boys in the US were given Castin or a name that sounds the same. With every name's spellings counted this way, that ranks #1,863, up from #12,003 for this spelling alone.

2006Busiest: 18 in 20172025
Castin in the US, year by year
YearBoysRank
20255#12,003
202410#7,760
20239#8,250
202211#7,256
202114#6,027
20209#8,062
201912#6,772
201811#7,132
201718#5,107
20168#8,811
20158#8,739
201411#7,043
20138#8,784
20129#8,152
201111#7,002
20107#9,686
200910#7,687
20080–
20075#12,361
20068#8,726

Names like Castin

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

Other spellings of Castin

Names related to Castin

More Modern names

Every Modern name

Sources

Figures from Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.

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