Delta is a distinctive girls' name in United States, ranking #1893 in 2023 with 105 recorded births. The name reached its all-time peak in 2019 with 136 births ranking #1571. Since 1996, the popularity has increased by 556.3%. In 2023, approximately 1 in every 15,263 girls born was named Delta. FALLING Recent data shows the name is currently falling.