Isabelle is a highly popular girls' name in England & Wales, ranking #33 in 2021 with 1,304 recorded births. The name reached its all-time peak in 2011 with 2,719 births ranking #17. Since 1996, the popularity has increased by 178.0%. In 2021, approximately 1 in every 210 girls born was named Isabelle. FALLING Recent data shows the name is currently falling.