Isaias
How to say it: ee-sah-EE-us · /ˌisɑˈiəs/
Spanish/Greek form of Isaiah; Hebrew 'Yesha'yahu': 'Yahweh is salvation.' Biblical name common in Latin America.
Isaias was the 422nd most popular boys’ name in the United States in 2025, given to 755 babies (Social Security Administration). The 2020s are its busiest decade so far, its births are up about 45% in ten years, and it is projected to rise to #355 by 2030.
Updated · SSA 2025 data, published May 2026 · Insee 2025 data, published July 2026 · How we compute these figures
Key facts
| Rank among boys’ names, 2025 | #422 |
|---|---|
| Babies born in 2025 | 755 |
| Share of births | 1 in 4,391 |
| Peak decade | 2020s |
| Change over 10 years | +45% |
| Projected rank for 2030 (estimate) | #355 |
| In France, 2025 | #1,664 among boys’ names, 10 births |
Sources: Social Security Administration (SSA), Insee (France). How we compute these figures.
Its life, decade by decade
Climbing still, Isaias has found its best showing in the 2020s. Standing at its peak now, further growth looks probable shortly.
What goes with it
Breathy and flowing, spoken ee sah EE us, it carries a biblical theme and travels well. Ezequiel moves in the same circle.
Nicknames
- Isa
- Sai
- Isi
Honouring a Isaias in the family
In the classroom
In a class of 25 children born in 2025, the chance that another child is called Isaias is about 1 in 183.
Around the world
This spelling is used in English, French, Greek, Hebrew, Portuguese, Spanish.
In France: #1,664 for boys in 2025.
Famous people named Isaias
- Isaias Pleci (1907–1980)Argentine chess player
From Wikidata and Wikipedia
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