Isaiah is a moderately popular boys' name in England & Wales, ranking #170 in 2024 with 297 recorded births. The name reached its all-time peak in 2020 with 323 births ranking #164. Since 1996, the popularity has increased by 1,250.0%. In 2024, approximately 1 in every 935 boys born was named Isaiah. STABLE Recent data shows the name is currently stable.