Casin
Casin was last recorded in 2023, when 5 babies were given it; 128 Americans have been recorded with it between 1995 and 2023 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Casin by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Casin?
Unranked in 2025
Its last boys’ rank on record is #12,542, in 2023; SSA lists a name only in years with 5 or more births.
16 babies in 2009, the peak
Casin peaked in 2009, when 16 boys were given it, #5,594 among boys’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2023 | 5 | #12,542 | 2.9 |
| 2022 | 5 | #12,670 | 2.9 |
| 2021 | 5 | #12,458 | 2.9 |
| 2020 | 5 | #12,360 | 2.9 |
| 2019 | 7 | #9,917 | 3.9 |
| 2018 | 5 | #12,484 | 2.8 |
| 2017 | 10 | #7,658 | 5.4 |
| 2015 | 8 | #8,874 | 4.2 |
| 2014 | 12 | #6,702 | 6.2 |
| 2013 | 7 | #9,818 | 3.7 |
Every recorded year (17)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2012 | 7 | #9,869 | 3.7 |
| 2011 | 7 | #9,780 | 3.7 |
| 2010 | 9 | #8,246 | 4.7 |
| 2009 | 16 | #5,594 | 8.1 |
| 2008 | 7 | #10,015 | 3.4 |
| 2001 | 7 | #8,450 | 3.6 |
| 1995 | 6 | #7,939 | 3.2 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Casin a boy’s or a girl’s name?
Casin has been recorded only for boys: SSA lists no girls with the name in 17 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Casin: the SSA national file counts each sex separately.
How many people are named Casin, and how old are they?
An estimated 127 Americans named Casin and born in the U.S. are alive in 2026 (99% of everyone recorded); the median is 13 years old and half are between 8 and 17. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 191 people named Casin (13 women and girls, 178 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 108 born in the U.S. The Census count is 1.8 times that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
How common is the spelling Casin?
Casin is a less common spelling of Kasyn: SSA has recorded 128 Casin and 1,663 Kasyn since 1880.
Of these 8 names spelled alike, given to 56,430 babies since 1880, Casin is the eighth most given (<1% of them). In 2025 none of their 2,769 babies recorded by SSA was a Casin (SSA lists a name only with 5 or more babies of one sex).
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Casin
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Casin and names like it
- Compare Casin and KasynBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2000sCasin peaked in 2009.
- Texas’s most given namesThe state where SSA recorded the most babies named Casin since 1910.
- The top names of 2009The year the most babies were named Casin.
- The names of Generation AlphaMost people named Casin alive today were born 2013-2025.
- Names starting with CMost given first.