Caidyn
Caidyn was the 4420th most popular name for boys in 2025, given to 23 babies. Its best year was 2011, when it ranked 2081st with 64 babies. Over the last ten years it has moved down 1,388 places. More babies were named Caidyn in the 2010s than in any other decade.
Meaning (as Kayden) Origin not documented
- Rank in 2025
- #4,420 boys, down 481 places since 2020
- Babies in 2025
- 23boys
- Girls and boys
- 17% girls, 83% boys2021–2025
- Peak year
- 201164 babies
- Total since 1880
- 1,270babies recorded
What does the name Caidyn mean?
Caidyn is a spelling of Kayden, pronounced the same way, so it shares Kayden's meaning and origin.
Kayden is a variant spelling of Caden, a name created by American parents in the 1990s. Wiktionary describes Caden as coined to rhyme with fashionable names such as Aidan, Braden, Hayden and Jayden. Wikipedia notes that some connect Caden with the Irish surname Mac Cadáin, 'son of Cadán', but calls the etymology debated; we found no evidence that this surname explains the modern name. Kayden has been given to both boys and girls.
How sure is this? Not documented. A recent coinage; the link to Irish Mac Cadáin is a suggestion only.
Related names: Caden, Kaden, Kaiden, Cayden, Jayden.
Sources for this meaning
- Wiktionary, entry 'Kayden', Wiktionary (Wikimedia Foundation); facts restated, no text reused
- Wiktionary, entry 'Caden', Wiktionary (Wikimedia Foundation); facts restated, no text reused
- Wikipedia, 'Caden (given name)', Wikipedia (Wikimedia Foundation); facts restated, no text reused
Caidyn popularity since 1880
| Year | Rank (girls) | Rank (boys) | Babies (girls) | Babies (boys) |
|---|---|---|---|---|
| 2025 | — | #4,420 | — | 23 |
| 2020 | #10,422 | #3,939 | 9 | 26 |
| 2010 | #5,131 | #2,433 | 27 | 51 |
| 2000 | #10,898 | #10,587 | 8 | 5 |
| 1990 | — | — | — | — |
| 1980 | — | — | — | — |
| 1970 | — | — | — | — |
| 1960 | — | — | — | — |
| 1950 | — | — | — | — |
| 1940 | — | — | — | — |
| 1930 | — | — | — | — |
| 1920 | — | — | — | — |
| 1910 | — | — | — | — |
| 1900 | — | — | — | — |
| 1890 | — | — | — | — |
| 1880 | — | — | — | — |
How popular is Caidyn, counting every spelling?
Caidyn is a spelling of Kayden, a name family that ranked #20 for boys in 2025 once every spelling is counted together, compared with #4,420 for Caidyn on its own. Together these spellings went to 8,538 boys in 2025.
| Spelling | Babies 2025 | Official rank | Babies 2021–2025 |
|---|---|---|---|
| Kayden | 2,678 | #135 | 15,775 |
| Kaiden | 1,476 | #237 | 9,937 |
| Caden | 1,742 | #201 | 8,503 |
| Kaden | 1,034 | #328 | 5,967 |
| Cayden | 774 | #414 | 5,111 |
| Caiden | 475 | #602 | 3,075 |
| Kaidyn | 67 | #2,157 | 481 |
| Kaeden | 48 | #2,697 | 428 |
| Kaedyn | 26 | #4,086 | 204 |
| Caeden | 30 | #3,675 | 191 |
| Kaydon | 35 | #3,349 | 190 |
| Kaidan | 15 | #5,995 | 130 |
Spellings count together when they sound the same in American English and are used for the same sex; nicknames and forms that sound different (such as Theo and Theodore) are kept apart. How we group spellings.
How many kids will share the name Caidyn?
23 of the 3,606,400 babies born in the US in 2025 were named Caidyn (0.01 per 1,000 births). For a boy named Caidyn born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 363 (of 430 pupils) would have a child named Caidyn.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Caidyn?
About 800 people born in the US named Caidyn are alive today, with a median age of 13; half are between 8 and 17. That makes Caidyn mostly worn by children and young adults.
Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.
Names with a similar history
These names rose and fell in step with Caidyn: their share of US boys followed the most similar curve since 1880. If you like Caidyn, they share its era and feel.
Questions about the name Caidyn
How popular is the name Caidyn?
Caidyn was the 4420th most popular name for boys in 2025, given to 23 babies. Its best year was 2011, when it ranked 2081st with 64 babies. Over the last ten years it has moved down 1,388 places. More babies were named Caidyn in the 2010s than in any other decade.
Is Caidyn a boy or girl name?
In 2021–2025, 17% girls, 83% boys given the name Caidyn in the US.