Deirdre is a distinctive girls' name in United States, ranking #1933 in 1997 with 75 recorded births. The name reached its all-time peak in 1996 with 109 births ranking #1493. Since 1996, the popularity has decreased by 31.2%. In 1997, approximately 1 in every 23,209 girls born was named Deirdre. FALLING Recent data shows the name is currently falling.