Hannan is a distinctive girls' name in United States, ranking #7191 in 2002 with 15 recorded births. The name reached its all-time peak in 1998 with 25 births ranking #4412. Since 1996, the popularity has increased by 36.4%. In 2002, approximately 1 in every 119,788 girls born was named Hannan. FALLING Recent data shows the name is currently falling.