Deirdre is a distinctive girls' name in United States, ranking #5516 in 2014 with 24 recorded births. The name reached its all-time peak in 1996 with 109 births ranking #1493. Since 1996, the popularity has decreased by 78.0%. In 2014, approximately 1 in every 74,414 girls born was named Deirdre. FALLING Recent data shows the name is currently falling.