Flannery is a distinctive girls' name in United States, ranking #5702 in 1997 with 17 recorded births. The name reached its all-time peak in 2006 with 23 births ranking #5787. Since 1996, the popularity has increased by 30.8%. In 1997, approximately 1 in every 102,392 girls born was named Flannery. FALLING Recent data shows the name is currently falling.