Trenity is a distinctive girls' name in United States, ranking #3423 in 2007 with 49 recorded births. The name reached its all-time peak in 2012 with 60 births ranking #2900. Since 1996, the popularity has increased by 880.0%. In 2007, approximately 1 in every 39,234 girls born was named Trenity. FALLING Recent data shows the name is currently falling.