Declining since 2005, #3,128 for boys today.
Popularity of Isak since 1979
Babies named Isak per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1970s | 6 |
| 1980s | 40 |
| 1990s | 175 |
| 2000s | 433 |
| 2010s | 299 |
| 2020s | 154 |
Meaning & origin
Isak is a Scandinavian variant of Isaac that has seen modest use in the United States since it first appeared in Social Security records in 1979. Though it has never been among the most common names, it reached its peak popularity in 2004, when it ranked 1,909. Since 2005, its usage has been gradually declining; in 2025, it ranked 3,128, with roughly 1 in 44,949 newborn boys receiving the name. The states where Isak has been most frequently used are Texas and California, reflecting the broader pattern of Scandinavian heritage names in areas with larger Nordic-American communities. Parents drawn to Isak often appreciate its strong biblical roots combined with a distinctive Northern European feel, offering a less common alternative to the more familiar Isaac.
Isak is a Scandinavian and Germanic form of Isaac, from the Hebrew name Yitzchak, meaning 'he will laugh.' The name appears in the Old Testament as the son of Abraham and Sarah, born to them in their old age. It has been used across Northern Europe for centuries, particularly in Sweden, Norway, Denmark, and Iceland, and was brought to the United States by Scandinavian immigrants.
Where Isak is most popular
Births per 100,000 boys by state, 2025. The lightest shade means too few recorded births.
“Isak” around the world
Where Isak lands in the latest official birth statistics abroad, matched to the U.S. spelling.
France
20
babies in 2024
Sources: INSEE (France).
Nicknames & variants
Nicknames: Izzy
Sibling names for Isak
Names that share Isak's style, for a brother or sister.
