Triniece is a distinctive girls' name in United States, ranking #18645 in 2004 with 5 recorded births. This places Triniece in the bottom 1% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2004 with 5 births ranking #18645. In 2004, approximately 1 in every 367,224 girls born was named Triniece. STABLE Recent data shows the name is currently stable.