Tierney is a distinctive girls' name in United States, ranking #5615 in 2022 with 23 recorded births. The name reached its all-time peak in 2000 with 110 births ranking #1616. Since 1996, the popularity has decreased by 77.5%. In 2022, approximately 1 in every 71,251 girls born was named Tierney. FALLING Recent data shows the name is currently falling.