Brynna is a distinctive girls' name in United States, ranking #2087 in 1998 with 70 recorded births. The name reached its all-time peak in 2011 with 171 births ranking #1349. Since 1996, the popularity has increased by 37.3%. In 1998, approximately 1 in every 25,241 girls born was named Brynna. FALLING Recent data shows the name is currently falling.