Delta is a distinctive girls' name in United States, ranking #2266 in 2024 with 82 recorded births. The name reached its all-time peak in 2019 with 136 births ranking #1571. Since 1996, the popularity has increased by 412.5%. In 2024, approximately 1 in every 19,673 girls born was named Delta. FALLING Recent data shows the name is currently falling.