Isaias is a distinctive boys' name in England & Wales, ranking #3256 in 2025 with 6 recorded births. This places Isaias in the bottom 47% of ranked UK boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2024 with 8 births ranking #2672. In 2025, approximately 1 in every 45,323 boys born was named Isaias. STABLE Recent data shows the name is currently stable.
Isaias is an international form of Isaiah and carries the same meaning, "Yahweh is salvation". It feels warm and melodic while still clearly belonging to the prophetic biblical tradition.
The name is used especially in Spanish-speaking and other international settings. Its appeal lies in offering the depth of Isaiah with a slightly different cadence and style.