Hannan is a distinctive girls' name in United States, ranking #7529 in 2008 with 17 recorded births. The name reached its all-time peak in 1998 with 25 births ranking #4412. Since 1996, the popularity has increased by 54.5%. In 2008, approximately 1 in every 111,219 girls born was named Hannan. FALLING Recent data shows the name is currently falling.