Sissy is a distinctive girls' name in United States, ranking #8132 in 2001 with 13 recorded births. The name reached its all-time peak in 2002 with 15 births ranking #7388. Since 1996, the popularity has increased by 85.7%. In 2001, approximately 1 in every 138,505 girls born was named Sissy. FALLING Recent data shows the name is currently falling.