Isobella is a distinctive girls' name in United States, ranking #13282 in 2004 with 7 recorded births. The name reached its all-time peak in 2009 with 22 births ranking #6187. Since 1996, the popularity has increased by 40.0%. In 2004, approximately 1 in every 262,303 girls born was named Isobella. FALLING Recent data shows the name is currently falling.