The nameIsaac

Isaac is a boy's name of Hebrew origin meaning "he will laugh". The name of the son of Abraham, it has gone from Puritan favourite to modern classic.

Meaning

Isaac comes from the Hebrew Yitzhaq, "he will laugh". In Genesis, Sarah laughs when she learns she will have a son in her old age.

Origin

Hebrew. Isaac is the son of Abraham and Sarah and the father of Jacob and Esau.

History

Isaac Newton made the name famous in science. Long associated with the Puritans, it became popular again from the 1990s in Britain and the United States.

Isaac in other languages

Isaac is spelled the same in English, French and Spanish. It is Isacco in Italian, Isaque in Portuguese, Izaak in Polish, Yitzhak in Hebrew and Ishaq in Arabic.

Nicknames for Isaac

The most common nicknames for Isaac: Ike and Zac.

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Famous people named Isaac

Popularity of the name Isaac

Isaac in the United States

40thmost popular boys' name in the United States in 2024
2007peak year (10,287 births)
326,231babies named Isaac in the United States since 1880
05,14410,287 18801900192019401960198020002020
Births per year in the United States. Source: Social Security Administration, names given at least 5 times a year.

Isaac was most popular in the United States in the 2010s, with 94,650 births over the decade, 29% of all recorded babies named Isaac. Its rise began around 1976, and it peaked in 2007. Half of all babies named Isaac in the United States were born before 2006, so it is mostly a name of today's children and teenagers. Over the last five years on record, it has been falling: 6,800 births a year on average, against 9,088 in the five years before.

Isaac in the United Kingdom

35thmost popular boys' name in the United Kingdom in 2025
2015peak year (3,009 births)
53,321babies named Isaac in the United Kingdom since 1997
01,5053,009 200020052010201520202025
Births per year in the United Kingdom. Source: ONS, NRS and NISRA (England, Wales, Scotland, Northern Ireland), names given at least 3 times a year.

Isaac was most popular in the United Kingdom in the 2010s, with 26,902 births over the decade, 50% of all recorded babies named Isaac. Half of all babies named Isaac in the United Kingdom were born before 2014, so it is mostly a name of today's children and teenagers. Over the last five years on record, it has been falling: 1,730 births a year on average, against 2,603 in the five years before.

Isaac in Ireland

108thmost popular boys' name in Ireland in 2025
2014peak year (101 births)
1,671babies named Isaac in Ireland since 1964
051101 198020002020
Births per year in Ireland. Source: Central Statistics Office, names given at least 3 times a year.

Isaac in France

11thmost popular boys' name in France, latest official figures
2025peak year (2,715 births)
29,605babies named Isaac in France since 1900
01,3582,715 1900192019401960198020002020
Births per year in France. Source: Insee, French national statistics office, latest official figures. Rounded numbers.

Isaac in Belgium

32ndmost popular boys' name in Belgium in 2025
2023peak year (179 births)
2,107babies named Isaac in Belgium since 1995
090179 1995200020052010201520202025
Births per year in Belgium. Source: Statbel, names given at least 5 times a year.

Isaac in Switzerland

52ndmost popular boys' name in Switzerland in 2025
2025peak year (112 births)
1,039babies named Isaac in Switzerland since 2000
056112 200020052010201520202025
Births per year in Switzerland. Source: Swiss Federal Statistical Office (FSO).

Isaac in Norway

253rdmost popular boys' name in Norway in 2025
2014peak year (36 births)
538babies named Isaac in Norway since 1945
01836 1960198020002020
Births per year in Norway. Source: Statistics Norway (SSB), table 10467.

Sibling names for Isaac

Names from the same generation as Isaac, whose popularity in the United States has followed a similar path.

How many people are named Isaac? See the counter → · What would your name be in 1950? · Name origin quiz

Compare Isaac with another name

Meaning, origin and popularity of Isaac side by side with the name of your choice.

Isaac in our baby name lists

Frequently asked questions

What does the name Isaac mean?

Isaac comes from the Hebrew Yitzhaq, "he will laugh". In Genesis, Sarah laughs when she learns she will have a son in her old age.

What is the origin of the name Isaac?

Hebrew. Isaac is the son of Abraham and Sarah and the father of Jacob and Esau.

Is Isaac a girl's or a boy's name?

Isaac is a boy's name.

How popular is the name Isaac?

In 2024, Isaac was the 40th most popular name for baby boys in the United States, with 6,498 births.

What are good sibling names for Isaac?

Names from the same generation, with a similar popularity in the United States: Leah, Abigail, Madelyn and Elizabeth for a sister, Gabriel, Benjamin, Jeremiah and Caleb for a brother.

What are common nicknames for Isaac?

The most common nicknames for Isaac are Ike and Zac.

Who are famous people named Isaac?

Isaac, patriarch of the Bible; Isaac Newton, scientist; Isaac Asimov, writer; Isaac Hayes, musician.