Kaidyn
Kaidyn was the 2157th most popular name for boys in 2025, given to 67 babies. Its best year was 2012, when it ranked 1043rd; the most babies were born in 2014 (190). Over the last ten years it has moved down 971 places. More babies were named Kaidyn in the 2010s than in any other decade.
Meaning (as Kayden) Origin not documented
- Rank in 2025
- #2,157 boys, down 657 places since 2020
- Babies in 2025
- 67boys
- Girls and boys
- 14% girls, 86% boys2021–2025
- Peak year
- 2014190 babies
- Total since 1880
- 4,061babies recorded
What does the name Kaidyn mean?
Kaidyn 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
Kaidyn popularity since 1880
| Year | Rank (girls) | Rank (boys) | Babies (girls) | Babies (boys) |
|---|---|---|---|---|
| 2025 | #9,144 | #2,157 | 11 | 67 |
| 2020 | #5,088 | #1,500 | 25 | 113 |
| 2010 | #2,048 | #1,260 | 97 | 139 |
| 2000 | — | #9,695 | — | 6 |
| 1990 | — | — | — | — |
| 1980 | — | — | — | — |
| 1970 | — | — | — | — |
| 1960 | — | — | — | — |
| 1950 | — | — | — | — |
| 1940 | — | — | — | — |
| 1930 | — | — | — | — |
| 1920 | — | — | — | — |
| 1910 | — | — | — | — |
| 1900 | — | — | — | — |
| 1890 | — | — | — | — |
| 1880 | — | — | — | — |
How popular is Kaidyn, counting every spelling?
Kaidyn is a spelling of Kayden, a name family that ranked #20 for boys in 2025 once every spelling is counted together, compared with #2,157 for Kaidyn 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 Kaidyn?
67 of the 3,606,400 babies born in the US in 2025 were named Kaidyn (0.02 per 1,000 births). For a boy named Kaidyn 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 125 (of 430 pupils) would have a child named Kaidyn.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Kaidyn?
About 2,700 people born in the US named Kaidyn are alive today, with a median age of 12; half are between 7 and 16. That makes Kaidyn a young name: most people with it are children.
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.
Kaidyn by state
How common Kaidyn was among boys born in each state in 2021–2025. It is notably more common than nationally in Florida (1.6×), North Carolina (1.6×). In 35 states fewer than five boys a year got the name, too few for SSA to publish, so those states show as zero.
Names with a similar history
These names rose and fell in step with Kaidyn: their share of US boys followed the most similar curve since 1880. If you like Kaidyn, they share its era and feel.
Questions about the name Kaidyn
How popular is the name Kaidyn?
Kaidyn was the 2157th most popular name for boys in 2025, given to 67 babies. Its best year was 2012, when it ranked 1043rd; the most babies were born in 2014 (190). Over the last ten years it has moved down 971 places. More babies were named Kaidyn in the 2010s than in any other decade.
Is Kaidyn a boy or girl name?
In 2021–2025, 14% girls, 86% boys given the name Kaidyn in the US.
Where is Kaidyn most popular?
In 2021–2025, Kaidyn was most common in Louisiana (0.13 per 1,000 boys), followed by Florida and North Carolina.