In 2025, 49 US boys were named Giacomo, making it the 2,654th most common boys’ name of the year, up 641 places from #3,295 in 2024. That is 13 more than the 36 boys named Giacomo in 2024. Its best rank for boys was #1,312, reached in 1914. The most boys given the name in a single year was 56, in 2006. For comparison, it was #4,113 in 2015 and #2,865 in 1950.
Social Security card records list Giacomo in 102 years of the 146 from 1880 to 2025, starting in 1912 with 9 babies. In all, 1,896 US babies have been given the name, all of them boys. Its busiest decade was the 2000s, with 423 babies named Giacomo.
Over the 10 years from 2016 to 2025, 340 US boys were named Giacomo; the busiest of those years was 2025, with 49. In 2025 that was about 1 in 34,859 of the boys in SSA’s list for the year.
Among the states, Giacomo ranked highest in Ohio in 2025, at #1,344 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include James (5,274,520 babies since 1880), Jacob (990,532 babies since 1880), Jim (153,938 babies since 1880) and Diego (126,405 babies since 1880).