The first name Izaak
A boy’s name.
2 syllables Male
Popularity
Babies registered in England and Wales, 1996–2025
In 2025, 11 boys were named Izaak, making it the 2,133rd most popular boys’ name. It peaked in 2007, with 52 births (#580).
Office for National Statistics; years with fewer than three births are not published and show as zero. Compare Izaak with other names.
Popularity in the United States
Babies named Izaak at birth, 1880–2025
In 2025, 41 boys born in the United States were named Izaak, the 3,016th most popular boys’ name that year. It was used most in 2011, when 138 were.
US Social Security Administration, from applications for a Social Security card. A name is only published for a year when at least five babies were given it, so quieter years show as zero.
Famous people named Izaak
4 on Wikidata, most written-about first
- Izaak WaltonEnglish author and biographer (1593-1683)
- Izaak KolthoffDutch-American analytical chemist and university teacher (1894–1993)
- Izaak ReijndersDutch military officer (1879–1966)
- Phife DawgAmerican rapper (1970–2016)
Questions
- How popular is the name Izaak?
- In 2025, 11 boys born in England and Wales were named Izaak, ranking 2,133rd. Its peak was 2007, with 52 births.
- Is Izaak a boy's or a girl's name?
- Mostly a boy's name: 100% of the 2,889 US babies named Izaak since 1880 were boys.
- When was Izaak most popular?
- 2011 in the United States, when 138 babies were named Izaak, its highest rank at 1,255th.