Isaias
Isaias was the 426th most popular name for boys in 2025, given to 755 babies. That is its highest rank since records began in 1880. Over the last ten years it has moved up 126 places. More babies were named Isaias in the 2010s than in any other decade.
Meaning Yahweh is salvation (form of Isaiah) · Hebrew, Greek, Spanish
Say it ee-sah-EE-ahs /isɑˈiɑs/
- Rank in 2025
- #426 boys, up 46 places since 2020
- Babies in 2025
- 755boys
- Girls and boys
- Almost always a boy’s name2021–2025
- Peak year
- 2025755 babies
- Total since 1880
- 18,644babies recorded
What does the name Isaias mean?
Isaias is the Greek, Latin and Spanish form of Isaiah, the prophet whose book opens with Isaiah 1:1. DMNES derives Isaiah from Hebrew Yeshayahu, "Yahweh is salvation", through Greek Ēsaias, and records the form Isaias in a Dutch community in England in 1574. In the US Isaias is used mainly in Spanish-speaking families.
יְשַׁעְיָהוּ (Biblical Hebrew, “Yahweh is salvation”)
How sure is this? Well established.
Related names: Isaiah, Isaías, Isai.
See also: Hebrew names, names that mean God.
Sources for this meaning
Isaias popularity since 1880
| Year | Rank (boys) | Babies (boys) |
|---|---|---|
| 2025 | #426 | 755 |
| 2020 | #472 | 632 |
| 2010 | #494 | 526 |
| 2000 | #566 | 364 |
| 1990 | #814 | 157 |
| 1980 | #999 | 82 |
| 1970 | #1,534 | 31 |
| 1960 | #1,836 | 20 |
| 1950 | #1,561 | 23 |
| 1940 | #2,397 | 10 |
| 1930 | #1,924 | 16 |
| 1920 | #3,638 | 7 |
| 1910 | — | — |
| 1900 | — | — |
| 1890 | — | — |
| 1880 | — | — |
How popular is Isaias, counting every spelling?
Isaias is the most common spelling of a name family that ranked #411 for boys in 2025 once every spelling is counted together, compared with #426 for Isaias on its own. Together these spellings went to 789 boys in 2025.
| Spelling | Babies 2025 | Official rank | Babies 2021–2025 |
|---|---|---|---|
| Isaias | 755 | #426 | 3,440 |
| Izaias | 34 | #3,401 | 85 |
Spellings count together when they sound the same in American English and are used for the same sex; nicknames and forms that sound different (such as Theo and Theodore) are kept apart. How we group spellings.
How many kids will share the name Isaias?
755 of the 3,606,400 babies born in the US in 2025 were named Isaias (0.21 per 1,000 births). For a boy named Isaias born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 11 (of 430 pupils) would have a child named Isaias.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Isaias?
About 17,900 people born in the US named Isaias are alive today, with a median age of 16; half are between 7 and 25. That makes Isaias mostly worn by children and young adults.
Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.
Isaias by state
How common Isaias was among boys born in each state in 2021–2025. It is notably more common than nationally in New Mexico (2.4×), Texas (2.0×), California (1.9×), Arizona (1.7×), Colorado (1.5×). It is least common, relative to the national rate, in Michigan, Ohio, Kentucky.
Names with a similar history
These names rose and fell in step with Isaias: their share of US boys followed the most similar curve since 1880. If you like Isaias, they share its era and feel.
Middle names for Isaias · Sibling names for Isaias
Questions about the name Isaias
What does Isaias mean?
Isaias means “Yahweh is salvation (form of Isaiah)” (Hebrew, Greek, Spanish origin). Certainty: well established.
How popular is the name Isaias?
Isaias was the 426th most popular name for boys in 2025, given to 755 babies. That is its highest rank since records began in 1880. Over the last ten years it has moved up 126 places. More babies were named Isaias in the 2010s than in any other decade.
Is Isaias a boy or girl name?
In 2021–2025, almost always a boy’s name given the name Isaias in the US.
Where is Isaias most popular?
In 2021–2025, Isaias was most common in New Mexico (0.94 per 1,000 boys), followed by Texas and California.