Trenity is a distinctive girls' name in United States, ranking #6468 in 1999 with 16 recorded births. The name reached its all-time peak in 2012 with 60 births ranking #2900. Since 1996, the popularity has increased by 220.0%. In 1999, approximately 1 in every 110,861 girls born was named Trenity. FALLING Recent data shows the name is currently falling.