Izaiah
Masculine · “Yahweh is salvation”
Izaiah is overwhelmingly a boys’ name — 14,899 boys against 10 girls since 1880.
Izaiah is the prophet's name with one letter turned: Isaiah, spelled the way it already sounds in an American mouth, where the middle s says z. Behind it stands one of the longest-running names in the written record, carried by the Hebrew prophet whose book has been copied, translated and read aloud for well over two and a half thousand years. The z is new; everything under it is very old.
How old is the name Izaiah?
Izaiah first appears in US birth records in 1984 — 41 years ago. The typical Izaiah alive today was born around 2012, making them about 13 years old. About 14,500 people named Izaiah are estimated to be alive in the US today.
When was the name Izaiah most popular?
Izaiah peaked in 2011, reaching #390 nationally. Today it ranks #635, 245 places below that high. See the whole 2011 chart.
Where it comes from
From Yesha'yahu to Izaiah
The story of Izaiah
The name begins in Hebrew as Yesha'yahu, borne by the prophet whose oracles fill the Book of Isaiah, active in Jerusalem in the eighth century BC. Greek translators of the Hebrew Bible rendered it Esaias, Latin turned that into Isaias, and English settled on Isaiah — a form that spread widely among English-speaking Protestants after the Reformation put the Bible in ordinary hands. Izaiah is a recent American respelling, part of a broader pattern in which parents write the z they hear instead of the s they inherit. It arrived on the US charts within living memory, rose, and has begun a gentle step back from its high point.
Meaning
Yahweh is salvation
From the Hebrew Yesha'yahu, joining a verb of saving or deliverance to the divine name. The respelled form carries the meaning of Isaiah unchanged.
How the name formed
- Yesha'yahu
- Esaias
- Isaias
- Isaiah
- Izaiah
Related forms: Yeshayahu · Isaías · Isaías · Isaia · Isaïe · Isaiah
Pronouncing Izaiah
eye-ZAY-uh
Three syllables, stress on the middle. The spelling makes the z sound explicit — the same sound most English speakers already give Isaiah.
Nicknames for Izaiah
High
What the data says
146 years of official birth records
The long climb, and where it stands now
The same years in position rather than babies
- First recorded
- 1984
- Most boys named
- 2009744 — the highest on record
- Peak rank
- #390reached in 2011
- Change vs 2024
- −6.2%439 in 2025, from 468
Rank is a position, a count is a headcount, and they move independently — a name can hold its rank while the number of babies behind it falls. Source: U.S. Social Security Administration.
Izaiah in other languages
The same name elsewhere
- Yeshayahu in Hebrew — same name
- Isaías in Spanish — same name
- Isaías in Portuguese — same name
- Isaia in Italian — same name
- Isaïe in French — same name
- Isaiah in English — spelling variant
Strongest US states over the last decade: California, Texas, Florida.
Izaiahs among us
people named Izaiah are estimated to be alive in the US today
About 1 boy in 3,891 born in 2025 was named Izaiah
Estimated from SSA birth records and published actuarial life tables. Method
Spellings of Izaiah
- #635
- Izaiah on the 2025 chart
- #53
- counting every spelling
The SSA counts spellings, not names. Izaiah went to 439 boys in 2025, but Isaiah and Izayah are the same name said out loud. Together the 8 spellings went to 5,836, which makes it the 53rd most-given boys’ name of the year — 582 places above the chart.
and 5 rarer spellings.
About 1 boy in 293 born in 2025 was given one of these spellings — against 1 in 3,891 for Izaiah itself.
Spellings are grouped by a fixed rule that folds interchangeable English spellings of one sound (ck/k, ph/f, x/ks, a non-initial y for i) and keeps vowels apart, so Sean and Shawn stay separate names. It errs towards splitting: a family here is never larger than the truth. SSA national data, 2025. Method
Is it right for you
What happens to a name after it peaks
The Dangelo test
Every popular name lives one long story — a climb, a peak, a slow settling back. Izaiah's later chapters haven't been written yet, so we borrowed them: Dangelo climbed just as high around 1996, and its whole arc is on record. Line the two peaks up, and Dangelo's path sketches the road Izaiah is walking now.
Izaiah sits in the calm middle of the cycle — neither chasing a wave nor sliding off one. Middle-of-the-cycle names age slowly and predictably.
A scored estimate from 146 years of naming cycles — not a prophecy. Great names outlive statistics. How this is scored
Where Izaiah is headed
Izaiah should hold steady through 2030 — the curve is flat, and flat curves are the most predictable kind.
Medium confidence — fitted on official counts through 2025.
A damped-trend projection of the official birth data — a sketch of momentum, not a promise. Every name's forecast, ranked.
Izaiah beside its neighbors
The names ranked closest to Izaiah in 2025, in babies rather than position — the bars are to scale.
US boys given each name in 2025.
The trade-off
- The meaning is settled and needs no hedging: Yahweh is salvation, from a name documented for well over two thousand years.
- Sounds identical to Isaiah, so anyone who hears it knows how to say it immediately.
- Has real short forms already in use — Izzy, Zay, Zaiah — rather than none at all.
- Close cousins exist in Spanish, Portuguese, Italian and French, so relatives abroad have a familiar version to hand.
- Familiar as a sound while staying uncommon as a spelling, so a classroom is unlikely to hold two.
- The default spelling is Isaiah, and that is what most people will write first. Expect a lifetime of small corrections on forms, rosters and coffee cups.
- Because the z form is recent, it carries none of its own paper trail — searches, older records and reference books will all point back to Isaiah.
- Izzy is shared with a crowd of other names, so a nickname may not identify him on its own.
- The biblical link is strong and unmistakable, which some families want and others would rather not foreground.
Nobody names a baby alone.
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What they receive
Someone added a name to your list
Izaiah
Masculine · #635 in the U.S.
Frequently asked
- How many Izaiahs are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 14,500 people named Izaiah are estimated to be alive in the US today.
- How do you spell Izaiah?
- Izaiah is one of 3 recorded spellings. Isaiah is the more common one — 5,267 births in 2025 against 439 for Izaiah.
- How popular is the name Izaiah in 2025?
- Izaiah ranks #635 among US boy names in 2025, with 439 babies given the name.
- How rare is the name Izaiah?
- About 1 in every 3,891 US boys born in 2025 was named Izaiah — 439 in all.
- Will my child share the name Izaiah with classmates?
- Izaiah will almost certainly be the only one in school.
Ranked beside Izaiah
Names sitting at a similar level of popularity right now.
Shane#635 · Raul#634 · Ronald#637 · Leonard#637 · Nathanael#632 · Zayd#632 · Kasai#639 · Memphis#639
Looking for what else is popular rather than what resembles Izaiah? See the current top 100.
Choosing between Izaiah and another name?
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US figures from the Social Security Administration. 1880–2025. Data & methodology
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