Head to head · Boys' names
Aidan vs Kaden
#326 vs #328 in 2025 · both stepping back from its peak
Aidan is a whisker ahead (#326 vs #328 in 2025) and both are stepping back from its peak. The records will not split these two — sound, story and your own last name will.
Cast your vote
Which one would you pick?
Your gut first, the numbers after — the split shows once you pick.
The tale of the tape
On the charts, Aidan leads 5 measures of 6; Kaden leads 0.
Ranks, counts and years are measured in the official US birth record; the classroom and living figures are estimates computed from it. The dot marks the side each measure favours on the charts — more common, not better.
What the records say
146 years of US births, drawn on one scale
Two curves, one scale
Who owned which decade
- 1930s: Aidan #3549, Kaden — — Aidan higher
- 1950s: Aidan #3311, Kaden — — Aidan higher
- 1960s: Aidan #2985, Kaden — — Aidan higher
- 1970s: Aidan #2603, Kaden #5845 — Aidan higher
- 1980s: Aidan #1558, Kaden #3962 — Aidan higher
- 1990s: Aidan #444, Kaden #822 — Aidan higher
- 2000s: Aidan #61, Kaden #139 — Aidan higher
- 2010s: Aidan #173, Kaden #173
- 2020s: Aidan #297, Kaden #282 — Kaden higher
Aidan stood higher in 7 of 8 decades; Kaden took the 2020s.
Rank by decade
| Decade | Aidan | Kaden |
|---|---|---|
| 1930s | #3549 | — |
| 1950s | #3311 | — |
| 1960s | #2985 | — |
| 1970s | #2603 | #5845 |
| 1980s | #1558 | #3962 |
| 1990s | #444 | #822 |
| 2000s | #61 | #139 |
| 2010s | #173 | #173 |
| 2020s | #297 | #282 |
Average national rank across each decade. A dash means the name sat outside the recorded top of that decade.
The names themselves
Meaning, roots, sound and the people who carried each
Where each name comes from
Aidan
little fire
From Irish aodh, fire, with the diminutive ending -an. Aodh was also a divine name in the pre-Christian Irish material, and it survives in the surnames Mac Aodha and O hAodha, anglicized as McHugh, Magee and Mackay.
Aodh → Aodhan → Aedan → Aidan
How it traveled
Aodh is among the oldest recorded Irish names, and its diminutive belonged to the monk whom the king of Northumbria asked Iona to send him. He founded the monastery on Lindisfarne in the seventh century, and the English kept his name in the spelling Aidan.
Kaden
Not established
Nothing is documented. Meanings are printed for this name in various places — companion, from Arabic, and fighter, from a supposed Welsh source — and neither can be traced to a word in either language that would produce it. There is a genuine Welsh Cadan and an Irish surname Mac Cadáin, but no line runs from either to the American name, which appears in the record exactly when the rhyme scheme it belongs to appeared.
How it traveled
Aidan brought its ending into American naming in the 1990s and the ending then did something no ending had done at that scale: it detached, and every consonant in the language was tried in front of it. Kaden and Caden were among the first of the purely new members — names with the shape of a tradition and none of the substance — and they became genuinely popular very quickly.
Where a reading is contested the note says so — this page does not turn a guess into a fact. The chain is each name's recorded forms, oldest first; the story is its opening, told in full on the name's own page.
Out loud, and in short
Aidan
AY-dun
Two syllables, stress on the first. The Irish Aodhan is closer to AY-dawn, with a fuller second syllable than English gives it. The dh in the Irish spelling is silent; it marks a consonant that stopped being pronounced centuries ago.
- Aido — An Irish informal pattern that clips a name and adds -o; rarely used in American families.
- A.J. — Used where a middle name supplies the second initial; the name itself resists shortening.
Kaden
KAY-den
Two syllables, stress on the first, the second reduced. Caden, Kayden, Kaiden and Kaeden are all said identically, which is why there are so many of them.
- Kade — The front of the name, now a standing given name of its own; short, brisk, and entirely current.
- K — The initial as a name; short, common in American use, and requiring nothing.
Is it right for you
The differences that decide it, laid out by what you want
Choose by what you want
Choose Aidan if you want…
On the measures here, the records do not separate Aidan from Kaden.
Choose Kaden if you want…
- a name past its most crowded yearsKaden is stepping back from its peak
Each line is a measured difference between the two names — a rank, a count, a recorded form — never a judgement of either. Save the one that answers your question; it lands on your shortlist.
The trade-offs, name by name
Aidan
Strengths
- A documented seventh-century bearer and a fixed feast day, so the history is checkable rather than atmospheric.
- This is the Irish spelling, which settles the argument about which version is the original.
- Two syllables, stress on the first, and nobody needs to be told how to say it.
To consider
- Aiden, Ayden and Aden all exist, so this spelling will be corrected and re-corrected for life.
- It arrived alongside a large cohort of rhyming names and will be heard as one of them.
- The very few girls given the spelling will be read as boys on every form.
Kaden
Strengths
- It is instantly familiar to every American and needs no explanation aloud.
- Kade works as a short form and has become a name in its own right.
- It is completely readable on sight with no ambiguity about the sound.
To consider
- Caden, Kayden and Kaiden all compete, so the spelling has to be dictated forever.
- It has no history to hand a child who goes looking, and the meanings offered online are invented.
- It belongs precisely to one naming wave and will date a boy's birth to within a few years.
Documented properties of each name — how it spells, travels and shortens — not opinions about the child.
With your last name
Say both in full. The notes are facts about letters and sound — a rhyme, a shared initial, the monogram — not a verdict on either name.
Type a last name to hear Aidan and Kaden in full.
Weighing the whole shortlist? Run the full comparison — up to eight names with your last name, initials, classroom projections and a printable report.
Decide together
Nobody names a baby alone
Still torn between Aidan and Kaden?
Put both to the vote.
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More than two in the running? Settle it with a bracket or run the full comparison with your last name.
More head-to-heads
Same measures, different pair. Sixty more are dealt daily in the arena.
Lists that carry both names
- Under the radar: quietly excellent picks
- Y2K names: the class of the 2000s
- Names that fell out of the top 100 this century
- all guides
Every list here names both Aidan and Kaden — the same style, ranked by the same records.
Aidan or Kaden — the short answers
- Which is more popular, Aidan or Kaden?
- Aidan, in 2025: Aidan ranked #326 with 1,043 babies; Kaden ranked #328 with 1,034 babies.
- Which name is rising faster, Aidan or Kaden?
- Neither is rising. Over the last five years Aidan moved down 65 places; Kaden moved down 75 places.
- Which is the older name, Aidan or Kaden?
- Aidan entered the US charts in 1936; Kaden entered the US charts in 1977. On the American record, Aidan is the older name.
- How many people are named Aidan and Kaden?
- About 117,000 people named Aidan are estimated to be alive in the US today. About 69,000 people named Kaden are estimated to be alive in the US today.
- Will there be other Aidans or Kadens in the classroom?
- Aidan will almost certainly be the only one in school. Kaden will almost certainly be the only one in school.
US figures from the Social Security Administration, 1880–2025. Votes are battle voters on this site, not the birth record. Data & methodology
Keep playing
Sixty more head-to-heads are dealt in the arena every day — or line up Aidan, Kaden and the rest of your shortlist with your last name in one printable report.
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