Izaac
Masculine · “he laughs”
Izaac is Isaac with the s traded for a z and the a doubled — a spelling that looks invented and is not entirely. Polish and Dutch both write this name with a z, and the doubled a is a Dutch convention for a long vowel.
How old is the name Izaac?
Izaac first appears in US birth records in 1977 — 48 years ago. The typical Izaac alive today was born around 2010, making them about 15 years old. About 2,800 people named Izaac are estimated to be alive in the US today.
When was the name Izaac most popular?
Izaac peaked in 2005, reaching #1191 nationally. Today it ranks #2833, 1,642 places below that high. See the whole 2005 chart.
Lists built from the same records:
Where it comes from
From Yitzchak to Izaac
The story of Izaac
Isaac is the son of Abraham and Sarah, and the near-sacrifice on Mount Moriah is one of the most argued-over passages in all three Abrahamic traditions. The name went into Greek as Isaak and Latin as Isaac, and European languages split on the consonant: English and French kept the s, Polish and Dutch wrote Izaak, Spanish has Isaac. The doubled a in Izaac is a Dutch spelling habit that marks a long vowel, and the form reaches American records both through those traditions and as a modern respelling.
Meaning
he laughs; he will laugh
Hebrew Yitzchak comes from tzachak, 'to laugh', and Genesis explains it inside the story: the promise of a son to a couple long past the age for one is met with laughter more than once, by both parents. The reading is documented and is one of very few biblical names whose meaning the text itself supplies.
How the name formed
- Yitzchak
- Isaak
- Izaak
- Izaac
Related forms: Isaac · Izaak · Izaak · Ishaq · Yitzhak
Pronouncing Izaac
EYE-zik
Two syllables, stress on the first, said exactly as Isaac. Hebrew says yits-KHAK, with the stress at the end and a throat consonant in the middle; the English saying has moved a long way from it.
Nicknames for Izaac
Moderate
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
- 1977
- Most boys named
- 2009151 — the highest on record
- Peak rank
- #1191reached in 2005
- Change vs 2024
- −13.7%44 in 2025, from 51
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.
Izaac in other languages
The same name elsewhere
- Isaac in English — spelling variant
- Izaak in Polish — spelling variant
- Izaak in Dutch — spelling variant
- Ishaq in Arabic — same name
- Yitzhak in Hebrew — same name
Strongest US states over the last decade: California, Texas, Florida.
Izaacs among us
people named Izaac are estimated to be alive in the US today
About 1 boy in 38,820 born in 2025 was named Izaac
Estimated from SSA birth records and published actuarial life tables. Method
Spellings of Izaac
- #2833
- Izaac on the 2025 chart
- #47
- counting every spelling
The SSA counts spellings, not names. Izaac went to 44 boys in 2025, but Isaac, Isaak and Izaak and the rest below are the same name said out loud. Together the 11 spellings went to 6,198, which makes it the 47th most-given boys’ name of the year — 2,786 places above the chart.
and 6 rarer spellings.
About 1 boy in 276 born in 2025 was given one of these spellings — against 1 in 38,820 for Izaac 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 Dathan test
Every popular name lives one long story — a climb, a peak, a slow settling back. Izaac's later chapters haven't been written yet, so we borrowed them: Dathan climbed just as high around 1975, and its whole arc is on record. Line the two peaks up, and Dathan's path sketches the road Izaac is walking now.
Izaac 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 Izaac is headed
Izaac 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.
Izaac beside its neighbors
The names ranked closest to Izaac in 2025, in babies rather than position — the bars are to scale.
US boys given each name in 2025.
The trade-off
- Recognized across Jewish, Christian and Muslim traditions alike.
- Ike, Izzy and Zac are three established short forms in different registers.
- The meaning is warm, specific and explained inside its own story.
- Isaac is overwhelmingly the standard English spelling and this one will be corrected for life.
- Izaac, Izaak, Isaak and Isaac all circulate and the letters get given every time.
- The z reads as a modern respelling to most English speakers even though it has European backing.
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Izaac
Masculine · #2833 in the U.S.
Frequently asked
- How many Izaacs are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 2,800 people named Izaac are estimated to be alive in the US today.
- How do you spell Izaac?
- Izaac is one of 5 recorded spellings. Isaac is the more common one — 5,953 births in 2025 against 44 for Izaac.
- How popular is the name Izaac in 2025?
- Izaac ranks #2833 among US boy names in 2025, with 44 babies given the name.
- How rare is the name Izaac?
- About 1 in every 38,820 US boys born in 2025 was named Izaac — 44 in all.
- Will my child share the name Izaac with classmates?
- Izaac will almost certainly be the only one in school.
Ranked beside Izaac
Names sitting at a similar level of popularity right now.
Bayron#2833 · Odysseus#2833 · Mahlon#2833 · Ward#2833 · Jarvis#2833 · Abriel#2833 · Alain#2833 · Josef#2833
Looking for what else is popular rather than what resembles Izaac? See the current top 100.
Choosing between Izaac and another name?
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US figures from the Social Security Administration. 1880–2025. Data & methodology
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