Gannon is a distinctive boys' name in United States, ranking #2216 in 2025 with 64 recorded births. This places Gannon in the top 16% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2014 with 751 births ranking #414. Since 1996, the popularity has decreased by 11.1%. In 2025, approximately 1 in every 26,689 boys born was named Gannon. FALLING Recent data shows the name is currently falling.