Isaak

♂ Boy

Pronounced EYE-zuk /ˈaɪ.zək/High

Meaning: He will laugh; he laughs; German and Russian spelling of Isaac, from Hebrew Yitzhak (he will laugh, he laughs)High

In 30 seconds: The German and Russian spelling of Isaac meaning 'he will laugh,' from Hebrew Yitzhak. Sarah laughed in disbelief when told she would bear a son at 90 — and when he was born, she named him He Will Laugh, saying 'God has brought me laughter.'

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Origin HighHebrew, German

MeaningHe will laugh; he laughs; German and Russian spelling of Isaac, from Hebrew Yitzhak (he will laugh, he laughs)

U.S. rank (2025)#2693 ↘ Falling

2025 U.S. births48 boys (0.00% of U.S. boys)

Peak year2009

Total births (all-time)≈ 4,271

Popularity in the U.S. · SSA data

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Isaak is the German and Russian spelling of Isaac, from Hebrew Yitzhak (he will laugh/he laughs). The patriarch Isaac was the son of Abraham and Sarah, born when Sarah was 90 years old. The name encodes the miraculous, laughing surprise of his birth.

Isaak is used in German American and Russian Jewish communities as the authentic spelling of Isaac from those traditions. Its 2024 ranking of #2399 for boys reflects its use in these communities.

Did you know? When the angel told Sarah she would have a son at 90 years old, she laughed in disbelief (Genesis 18:12). Then, when Isaac was born, she said 'God has brought me laughter, and everyone who hears about this will laugh with me' (Genesis 21:6). The name Isaac/Isaak holds this joyful divine laughter forever.

Overall data confidence 95%

Behind the Name — Isaak — Hebrew/German etymologyU.S. Social Security Administration — popularity data

Variations

IsaacYitzhak

Nicknames

IkeZak

Famous Bearers

★Isaac Newton (1643–1727)
English mathematician and physicist who formulated the laws of motion and universal gravitation, and co-invented calculus. Arguably the greatest scientist in history.

If you like Isaak…

Isaac— the standard English spelling of the same biblical name

Jakob— the German form of Jacob (Isaac's son) in the same biblical generation

Elias— Greek form of Elijah, a Hebrew patriarch name in the same tradition

Ezra— Hebrew short name with the same ancient biblical depth

Explore names like Isaak

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Frequently Asked

What does the name Isaak mean?

Isaak means 'he will laugh,' the German/Russian form of Isaac, from Hebrew Yitzhak. Named for Sarah's laughter at the miraculous announcement.

How do you pronounce Isaak?

It's said EYE-zuk /ˈaɪ.zək/ — two syllables, stress on the first.

Is Isaak a boy or girl name?

Isaak is used as a boy's name.

How popular is Isaak?

Isaak ranked #2399 for U.S. boys in 2024.