Flannery is a distinctive girls' name in United States, ranking #5296 in 1999 with 20 recorded births. The name reached its all-time peak in 2006 with 23 births ranking #5787. Since 1996, the popularity has increased by 53.8%. In 1999, approximately 1 in every 88,689 girls born was named Flannery. FALLING Recent data shows the name is currently falling.