Nameling

Casyn

Boy · KAY-sin · Modern

Casyn is a boys' name of Modern origin. In 2025 it ranked 5,207th for boys in the US (18 babies).

What does Casyn mean?

Modern: spelling of Kasyn, itself a spelling of Kason or Casen, a modern coinage

A modern coinage in the pattern of Jason and Mason.

Say it
KAY-sin

Meaning borrowed from Kasyn.

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

Casyn is a boys' name. In 2025, it was given to 18 boys in the US. Too few girls were given it to be listed.

How popular is Casyn in the US?

Rank in 2025
#5,207among boys
Babies in 2025
18about 1 in 95,000 boys
Five-year trend
Fallingdown 25% in five years
Same name in a class
under 1%chance among 15 boys

In 2025, 18 boys in the US were named Casyn, making it the 5,207th most popular name for boys. Five years earlier, in 2020, it was 3,200th. Its busiest year was 2020, with 35 boys. It first appears in the records in 2000.

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

Half of all the boys named Casyn in the US since 1880 were born between 2011 and 2020, the years shaded on the chart below.

In 2014, 26% of the babies named Casyn in the US were girls.

2000Busiest: 35 in 20202025
Casyn in the US, year by year
YearBoysRank
202518#5,207
202422#4,567
202328#3,880
202226#4,086
202130#3,647
202035#3,200
201930#3,633
201826#3,989
201730#3,582
201629#3,680
201528#3,774
201434#3,232
201325#3,962
201221#4,530
201126#3,883
201022#4,365
200925#4,033
200816#5,482
200715#5,658
200614#5,777
20055#11,464
20040–
20030–
20020–
20010–
20005#10,341

Names like Casyn

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

Names related to Casyn

More Modern names