Gagan is a distinctive boys' name in United States, ranking #12776 in 2019 with 5 recorded births. This places Gagan 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 2018 with 10 births ranking #7787. In 2019, approximately 1 in every 358,672 boys born was named Gagan. FALLING Recent data shows the name is currently falling.