Hannan is a distinctive girls' name in United States, ranking #8901 in 2010 with 13 recorded births. The name reached its all-time peak in 1998 with 25 births ranking #4412. Since 1996, the popularity has increased by 18.2%. In 2010, approximately 1 in every 136,717 girls born was named Hannan. FALLING Recent data shows the name is currently falling.