Isaak is a distinctive boys' name in England & Wales, ranking #2014 in 2025 with 12 recorded births. This places Isaak in the top 33% of ranked UK boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2011 with 21 births ranking #1209. Since 1996, the popularity has increased by 300.0%. In 2025, approximately 1 in every 22,661 boys born was named Isaak. RISING Recent data shows the name is currently rising.