Trenity is a distinctive girls' name in United States, ranking #9234 in 1998 with 10 recorded births. The name reached its all-time peak in 2012 with 60 births ranking #2900. Since 1996, the popularity has increased by 100.0%. In 1998, approximately 1 in every 176,689 girls born was named Trenity. FALLING Recent data shows the name is currently falling.