Isabelle is a moderately popular girls' name in United States, ranking #159 in 2023 with 1,792 recorded births. The name reached its all-time peak in 2007 with 4,105 births ranking #79. Since 1996, the popularity has increased by 146.8%. In 2023, approximately 1 in every 894 girls born was named Isabelle. FALLING Recent data shows the name is currently falling.