Trenity is a distinctive girls' name in United States, ranking #3158 in 2009 with 54 recorded births. The name reached its all-time peak in 2012 with 60 births ranking #2900. Since 1996, the popularity has increased by 980.0%. In 2009, approximately 1 in every 34,016 girls born was named Trenity. FALLING Recent data shows the name is currently falling.