In 2025, 64 US boys were named Gannon, making it the 2,216th most common boys’ name of the year, down 350 places from #1,866 in 2024. That is 22 fewer than the 86 boys named Gannon in 2024. Its best rank for boys was #414, reached in 2014. That year also had the most boys given the name: 751. For comparison, it was #532 in 2015 and unranked in 1950.
Social Security card records list Gannon in 60 years of the 146 from 1880 to 2025, starting in 1966 with 5 babies. In all, 6,682 US babies have been given the name, 0.1% of them girls and 99.9% boys. Its busiest decade was the 2010s, with 3,042 babies named Gannon.
Over the 10 years from 2016 to 2025, 1,876 US boys were named Gannon; the busiest of those years was 2016, with 346. In 2025 that was about 1 in 26,689 of the boys in SSA’s list for the year.
Among the states, Gannon ranked highest in Indiana in 2025, at #991 for boys there. It was not in the top 100 of any state. Rarer spellings such as Ganon, Gannen and Gannyn are summarised on this page.