Isobella is a distinctive girls' name in England & Wales, ranking #1719 in 2025 with 17 recorded births. The name reached its all-time peak in 2010 with 96 births ranking #438. Since 1996, the popularity has increased by 13.3%. In 2025, approximately 1 in every 14,899 girls born was named Isobella. FALLING Recent data shows the name is currently falling.