Deirdre is a distinctive girls' name in United States, ranking #2609 in 2002 with 59 recorded births. The name reached its all-time peak in 1996 with 109 births ranking #1493. Since 1996, the popularity has decreased by 45.9%. In 2002, approximately 1 in every 30,455 girls born was named Deirdre. FALLING Recent data shows the name is currently falling.