In 2025, 26 US boys were named Piero, making it the 4,111th most common boys’ name of the year, up 187 places from #4,298 in 2024. That is 1 more than the 25 boys named Piero in 2024. Its best rank for boys was #2,872, reached in 1977. The most boys given the name in a single year was 37, in 2007. For comparison, it was #4,373 in 2015 and unranked in 1950.
Social Security card records list Piero in 56 years of the 146 from 1880 to 2025, starting in 1961 with 9 babies. In all, 821 US babies have been given the name, all of them boys. Its busiest decade was the 2000s, with 223 babies named Piero.
Over the 10 years from 2016 to 2025, 223 US boys were named Piero; the busiest of those years was 2022, with 36. In 2025 that was about 1 in 65,695 of the boys in SSA’s list for the year.
Related spellings in the SSA files include Peter (591,531 babies since 1880), Pedro (94,582 babies since 1880) and Pierre (19,143 babies since 1880).