Isaias is a distinctive boys' name in United States, ranking #549 in 2014 with 500 recorded births. The name reached its all-time peak in 2025 with 755 births ranking #426. Since 1996, the popularity has increased by 73.6%. In 2014, approximately 1 in every 3,841 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.