Trenity is a distinctive girls' name in United States, ranking #3472 in 2008 with 48 recorded births. The name reached its all-time peak in 2012 with 60 births ranking #2900. Since 1996, the popularity has increased by 860.0%. In 2008, approximately 1 in every 39,390 girls born was named Trenity. FALLING Recent data shows the name is currently falling.