Dia is a distinctive girls' name in United States, ranking #6679 in 2003 with 17 recorded births. The name reached its all-time peak in 2015 with 62 births ranking #2819. Since 1996, the popularity has decreased by 10.5%. In 2003, approximately 1 in every 107,474 girls born was named Dia. FALLING Recent data shows the name is currently falling.