Isabelle is a moderately popular girls' name in United States, ranking #170 in 2024 with 1,778 recorded births. The name reached its all-time peak in 2007 with 4,105 births ranking #79. Since 1996, the popularity has increased by 144.9%. In 2024, approximately 1 in every 907 girls born was named Isabelle. FALLING Recent data shows the name is currently falling.