Isaias is a moderately popular boys' name in United States, ranking #441 in 2023 with 705 recorded births. The name reached its all-time peak in 2025 with 755 births ranking #426. Since 1996, the popularity has increased by 144.8%. In 2023, approximately 1 in every 2,423 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.