Briony is a distinctive girls' name in England & Wales, ranking #718 in 2005 with 42 recorded births. The name reached its all-time peak in 1997 with 101 births ranking #336. Since 1996, the popularity has decreased by 57.6%. In 2005, approximately 1 in every 6,863 girls born was named Briony. FALLING Recent data shows the name is currently falling.