Delia is a distinctive girls' name in United States, ranking #1561 in 2025 with 135 recorded births. The name reached its all-time peak in 2007 with 272 births ranking #986. Since 1996, the popularity has decreased by 27.8%. In 2025, approximately 1 in every 11,906 girls born was named Delia. FALLING Recent data shows the name is currently falling.