Rising since 1986, #426 for boys today.
Popularity of Isaias since 1915
Babies named Isaias per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1910s | 18 |
| 1920s | 98 |
| 1930s | 144 |
| 1940s | 150 |
| 1950s | 222 |
| 1960s | 242 |
| 1970s | 502 |
| 1980s | 985 |
| 1990s | 2,335 |
| 2000s | 4,664 |
| 2010s | 5,212 |
| 2020s | 4,072 |
Meaning & origin
Isaias, the Latin and Spanish form of Isaiah, has seen a steady rise in popularity in the United States since the mid-1980s. In 2025, it reached its peak rank of 426, with approximately 1 in 2,262 newborn boys receiving the name. The name first appeared in U.S. records in 1915 but remained relatively uncommon until recent decades. Its upward trajectory since 1986 reflects broader trends favoring biblical names with a strong, traditional sound. Isaias is particularly popular in states like New Mexico, Texas, and Colorado, where Hispanic and Catholic influences are significant. As a variant of a major prophet's name, it carries deep religious resonance while offering a distinctive alternative to the more common English Isaiah.
Isaias is the Latin and Greek form of the Hebrew name Yesha'yahu (ישעיהו), meaning 'salvation of Yahweh,' from the roots yasha (to save) and Yah (God). It is the name of a major prophet in the Hebrew Bible, often rendered as Isaiah in English. The form Isaias has been used historically in Catholic and Orthodox traditions, particularly in Spanish and Portuguese-speaking communities.
Where Isaias is most popular
Births per 100,000 boys by state. Press play or drag the slider to watch it move across the decades. The lightest shade means too few recorded births.
Nicknames & variants
Nicknames: Isa, Zay, Sai
Sibling names for Isaias
Names that share Isaias's style, for a brother or sister.
Names like Isaias
Names whose popularity has moved with Isaias's over the last 50 years.
