In 2025, 50 US boys were named Finnigan, making it the 2,615th most common boys’ name of the year, up 148 places from #2,763 in 2024. That is 3 more than the 47 boys named Finnigan in 2024. Its best rank for boys was #1,591, reached in 2016. That year also had the most boys given the name: 103. For comparison, it was #1,919 in 2015 and unranked in 1950.
Social Security card records list Finnigan in 27 years of the 146 from 1880 to 2025, starting in 1999 with 7 babies. In all, 1,353 US babies have been given the name, all of them boys. Its busiest decade was the 2010s, with 710 babies named Finnigan.
Over the 10 years from 2016 to 2025, 700 US boys were named Finnigan; the busiest of those years was 2016, with 103. In 2025 that was about 1 in 34,162 of the boys in SSA’s list for the year.
Among the states, Finnigan ranked highest in Missouri in 2025, at #906 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Finnegan (13,115 babies since 1880).