Trenity is a distinctive girls' name in United States, ranking #3361 in 2001 with 41 recorded births. The name reached its all-time peak in 2012 with 60 births ranking #2900. Since 1996, the popularity has increased by 720.0%. In 2001, approximately 1 in every 43,916 girls born was named Trenity. FALLING Recent data shows the name is currently falling.