Isobella is a distinctive girls' name in United States, ranking #12274 in 2015 with 8 recorded births. The name reached its all-time peak in 2009 with 22 births ranking #6187. Since 1996, the popularity has increased by 60.0%. In 2015, approximately 1 in every 223,082 girls born was named Isobella. FALLING Recent data shows the name is currently falling.