Gen is a distinctive boys' name in United States, ranking #8497 in 2000 with 7 recorded births. This places Gen in the bottom 30% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2000 with 7 births ranking #8497. In 2000, approximately 1 in every 280,562 boys born was named Gen. FALLING Recent data shows the name is currently falling.