Karel is a distinctive boys' name in United States, ranking #12966 in 2025 with 5 recorded births. The name reached its all-time peak in 2023 with 22 births ranking #4668. Since 1996, the popularity has decreased by 16.7%. In 2025, approximately 1 in every 341,615 boys born was named Karel. FALLING Recent data shows the name is currently falling.