Flash is a distinctive boys' name in United States, ranking #12765 in 2019 with 5 recorded births. This places Flash in the bottom 10% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2016 with 8 births ranking #9114. In 2019, approximately 1 in every 358,672 boys born was named Flash. FALLING Recent data shows the name is currently falling.