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2025 data, released 8 May 2026

Kaydin

Kaydin was the 4472nd most popular name for boys in 2025, given to 23 babies. Its best year was 2010, when it ranked 1570th with 101 babies. Over the last ten years it has moved down 2,331 places. More babies were named Kaydin in the 2010s than in any other decade.

Meaning (as Kayden) Origin not documented

Rank in 2025
#4,472 boys, up 474 places since 2020
Babies in 2025
23boys
Girls and boys
Almost always a boy’s name2021–2025
Peak year
2010101 babies
Total since 1880
1,852babies recorded

What does the name Kaydin mean?

Kaydin 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

Kaydin popularity since 1880

050100150200 1900192019401960198020002020
GirlsBoys Babies per year, US, from Social Security records. Years with fewer than 5 babies show as zero.
YearRank (girls)Rank (boys)Babies (girls)Babies (boys)
2025—#4,472—23
2020#14,273#4,946619
2010#4,248#1,57035101
2000—#9,723—6
1990————
1980————
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How popular is Kaydin, counting every spelling?

Kaydin is a spelling of Kayden, a name family that ranked #20 for boys in 2025 once every spelling is counted together, compared with #4,472 for Kaydin on its own. Together these spellings went to 8,538 boys in 2025.

SpellingBabies 2025Official rankBabies 2021–2025
Kayden2,678#13515,775
Kaiden1,476#2379,937
Caden1,742#2018,503
Kaden1,034#3285,967
Cayden774#4145,111
Caiden475#6023,075
Kaidyn67#2,157481
Kaeden48#2,697428
Kaedyn26#4,086204
Caeden30#3,675191
Kaydon35#3,349190
Kaidan15#5,995130

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 Kaydin?

23 of the 3,606,400 babies born in the US in 2025 were named Kaydin (0.01 per 1,000 births). For a boy named Kaydin 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 Kaydin.

Chance of another Kaydin in a class of 20under 1 in 50US, born 2025

Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.

How old are people named Kaydin?

About 1,300 people born in the US named Kaydin are alive today, with a median age of 15; half are between 11 and 18. That makes Kaydin mostly worn by children and young adults.

0–910–1920–2930–3940–4950–5960–6970–7980–8990+
Estimated people alive in the US with the name, by age, mid-2026. The darker bar holds the median age.

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 Kaydin: their share of US boys followed the most similar curve since 1880. If you like Kaydin, they share its era and feel.

Questions about the name Kaydin

How popular is the name Kaydin?

Kaydin was the 4472nd most popular name for boys in 2025, given to 23 babies. Its best year was 2010, when it ranked 1570th with 101 babies. Over the last ten years it has moved down 2,331 places. More babies were named Kaydin in the 2010s than in any other decade.

Is Kaydin a boy or girl name?

In 2021–2025, almost always a boy’s name given the name Kaydin in the US.