Susan is a moderately popular girls' name in United States, ranking #374 in 1998 with 758 recorded births. The name reached its all-time peak in 1996 with 963 births ranking #298. Since 1996, the popularity has decreased by 21.3%. In 1998, approximately 1 in every 2,331 girls born was named Susan. STABLE Recent data shows the name is currently stable.