Caidin
Boys' nameMeaning not yet documented
Caidin has been given to 96 babies in the U.S. since 2000. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 2006, with 11 recorded.
Babies named Caidin, 2021
1 in 565,000
Caidin over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
How common is Caidin?
Caidin had fewer than 5 recorded uses in 2025, so these figures use 2021, the last year it was published.
- Among all babies, 2021
- 1 in 565,000
- 6 of 3,389,958 births
- Among boys only
- 1 in 292,000
- <0.01% of boys
- Rank, 2021
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 391,624 kids
- Even odds of a second one
Where Caidin sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2021 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 391,624 children born in 2021 and it's an even bet that one of them is another Caidin. In a class of 30 the chance is Under 1%.
When Caidins were born
Half of everyone ever recorded as Caidin was born before 2007 — so the typical Caidin is around 18 today.
- Biggest decade
- 2000s
- 76.0% of all use
- Born in the last 25 years
- 100.0%
- A modern name
- Recorded since 1950
- 96
- People you could plausibly meet
2000s — 76.0% of all recorded uses (73).
Is Caidin rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- —
- Not ranked then
- Rank vs 5 years ago
- New entry
- Not ranked then
- Rank vs 10 years ago
- —
- Not ranked then
- Births vs 10 years ago
- —
- Not published both years
- Share of its own peak
- 0%
- Peak was 2006 (11)
- Years since peak
- 19
- Years
- Year-to-year steadiness
- Shifting
- 14.7% average annual change
Spellings of Caidin
Caidin is not the most common spelling — Aiden is, with 26.2% against Caidin's <0.01%.
Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.
Caidin around the world
Where Caidin ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.
- Northern Ireland2009–2009#390in 2009
Popularity data from Northern Ireland Statistics and Research Agency. NISRA data under Open Government Licence v3.0.
Caidin by the numbers
The raw record for each sex the name is used for.
Names similar to Caidin
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Caidin
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.