Kaidyn
#2,157 in 2025UnisexBoys' nameGirls' nameMeaning not yet documented
Kaidyn has been given to 4,061 babies in the U.S. since 1999. In 2025 it ranked #2,157 of 13,926 boys’ names in use. Its peak year was 2014, with 190 recorded. It's used for both sexes: 67% boys, 33% girls all-time.
Babies named Kaidyn, 2025
1 in 49,500
Kaidyn 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
Girls or boys — Kaidyn over time
In 2025, Kaidyn went to 14% girls and 86% boys.
A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.
How common is Kaidyn?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 49,500
- 67 of 3,315,165 births
- Among boys only
- 1 in 25,500
- <0.01% of boys
- Rank, 2025
- #2,157
- of 13,926 boys’ names in use
- Coin-flip room size
- 34,298 kids
- Even odds of a second one
Where Kaidyn sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 34,298 children born in 2025 and it's an even bet that one of them is another Kaidyn. In a class of 30 the chance is Under 1%.
When Kaidyns were born
Half of everyone ever recorded as Kaidyn was born before 2014 — so the typical Kaidyn is around 11 today.
- Biggest decade
- 2010s
- 56.3% of all use
- Born in the last 25 years
- 99.6%
- A modern name
- Recorded since 1950
- 2,741
- People you could plausibly meet
2010s — 56.3% of all recorded uses (1,544).
Is Kaidyn 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
- −246
- Places dropped
- Rank vs 5 years ago
- −657
- Places dropped
- Rank vs 10 years ago
- −971
- Places dropped
- Births vs 10 years ago
- 0.43×
- Fewer babies than then
- Share of its own peak
- 35.3%
- Peak was 2014 (190)
- Years since peak
- 11
- Years
- Year-to-year steadiness
- Shifting
- 19.5% average annual change
Spellings of Kaidyn
Kaidyn is not the most common spelling — Aiden is, with 33.2% against Kaidyn's 0.35%.
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.
Where Kaidyn is used — boys
Across 2016–2025, Kaidyn was most concentrated in Louisiana — about 1 in 10,000 boys, against 1 in 19,218 across all states with data. It was least common in Washington (1 in 100,000).
Most concentrated
- 1Louisiana1 in 10,000
- 2North Carolina1 in 10,000
- 3Michigan1 in 11,111
- 4Ohio1 in 11,111
- 5South Carolina1 in 11,111
- 6Alabama1 in 12,500
- 7Florida1 in 12,500
- 8Georgia1 in 14,286
Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings.
Where Kaidyn is used — girls
Across 1910–2025, Kaidyn was most concentrated in Alabama — about 1 in 100,000 girls, against 1 in 206,395 across all states with data. It was least common in Virginia (1 in —).
Most concentrated
- 1Alabama1 in 100,000
- 2Florida1 in 100,000
- 3Georgia1 in 100,000
- 4North Carolina1 in 100,000
- 5Texas1 in 100,000
- 6California1 in —
- 7Illinois1 in —
- 8Kentucky1 in —
Shading is the share of that state's recorded girls given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Kaidyn has too little recent state data to map, so this covers all years from 1910.
Kaidyn around the world
Where Kaidyn 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.
- England & Wales2006–2024#4,271in 2024
- Scotland2009–2019#701in 2019
- Canada2003–2020#2,945in 2020
- South Australia2001–2012#771in 2012
Popularity data from Office for National Statistics, National Records of Scotland, Statistics Canada and Consumer and Business Services (South Australia). ONS, NRS data under Open Government Licence v3.0. StatCan data under Statistics Canada Open Licence. CBS SA data under CC BY 4.0.
Kaidyn by the numbers
The raw record for each sex the name is used for.
As a boy's name
Names similar to Kaidyn
Matched on shared beginnings and endings, similar length, and comparable popularity.
Names with a curve like Kaidyn
Not spelling — timing. These names rose, peaked and faded in the same years as Kaidyn, so they read as being from the same moment even when they look nothing alike.
Sibling names for Kaidyn
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.