Susy is a distinctive girls' name in United States, ranking #13645 in 2019 with 7 recorded births. The name reached its all-time peak in 2007 with 18 births ranking #7365. Since 1996, the popularity has decreased by 36.4%. In 2019, approximately 1 in every 239,653 girls born was named Susy. FALLING Recent data shows the name is currently falling.