Dia is a distinctive girls' name in United States, ranking #4236 in 2007 with 36 recorded births. The name reached its all-time peak in 2015 with 62 births ranking #2819. Since 1996, the popularity has increased by 89.5%. In 2007, approximately 1 in every 53,401 girls born was named Dia. FALLING Recent data shows the name is currently falling.