Trinity is a moderately popular girls' name in United States, ranking #428 in 2025 with 725 recorded births. The name reached its all-time peak in 2004 with 5,638 births ranking #48. Since 1996, the popularity has increased by 119.0%. In 2025, approximately 1 in every 2,217 girls born was named Trinity. FALLING Recent data shows the name is currently falling.