Izaias is a variant of Isaiah, from Hebrew meaning 'Yahweh is salvation.'
Izaias is the Latinate and Portuguese-inflected form of Isaiah, one of the towering prophetic names of the Hebrew scriptures. The Hebrew original, *Yeshayahu* (יְשַׁעְיָהוּ), combines *yesha'* (salvation) and *Yah* (the divine name), yielding the declaration "God is salvation" or "salvation of Yahweh." The prophet Isaiah, whose writings span 66 chapters of the Hebrew Bible, is among the most quoted Old Testament figures in Christian theology — his visions of peace, his suffering servant passages, and his poetry of comfort have shaped Western literature, music, and moral imagination for two millennia.
The name passed through Greek (Ēsaias), Latin (Isaias), and into the Romance languages, where the -s ending of the Latin accusative form was often retained. Izaias is particularly found in Portuguese, Spanish, and Brazilian naming traditions, as well as in Latin American evangelical and Catholic communities where Old Testament prophetic names carry strong spiritual prestige. It has also appeared historically in Sephardic Jewish communities whose naming traditions preserved Iberian Romance forms of Hebrew names.
In contemporary usage, Izaias occupies a distinctive niche: it is recognizably related to Isaiah — now a perennial top-50 name in the United States — but sufficiently different to feel individual. The initial *Iz-* and the three-syllable melody give it a slightly more exotic texture than its English counterpart. For families with Latin American, Portuguese, or Sephardic heritage, Izaias is not an invention but a recovery — a name that carries the full prophetic weight of Isaiah while belonging specifically to their own linguistic tradition.