Isabelle is a moderately popular girls' name in United States, ranking #137 in 2022 with 2,106 recorded births. The name reached its all-time peak in 2007 with 4,105 births ranking #79. Since 1996, the popularity has increased by 190.1%. In 2022, approximately 1 in every 778 girls born was named Isabelle. FALLING Recent data shows the name is currently falling.