Trenity is a distinctive girls' name in United States, ranking #3731 in 2000 with 35 recorded births. The name reached its all-time peak in 2012 with 60 births ranking #2900. Since 1996, the popularity has increased by 600.0%. In 2000, approximately 1 in every 51,885 girls born was named Trenity. FALLING Recent data shows the name is currently falling.