Hannan is a distinctive girls' name in United States, ranking #6656 in 2007 with 20 recorded births. The name reached its all-time peak in 1998 with 25 births ranking #4412. Since 1996, the popularity has increased by 81.8%. In 2007, approximately 1 in every 96,122 girls born was named Hannan. FALLING Recent data shows the name is currently falling.