Trenity is a distinctive girls' name in United States, ranking #4949 in 2005 with 27 recorded births. The name reached its all-time peak in 2012 with 60 births ranking #2900. Since 1996, the popularity has increased by 440.0%. In 2005, approximately 1 in every 68,433 girls born was named Trenity. FALLING Recent data shows the name is currently falling.