In 2025, 862 US boys were named Marco, making it the 370th most common boys’ name of the year, up 17 places from #387 in 2024. That is 19 more than the 843 boys named Marco in 2024. Its best rank for boys was #174, reached in 1996. The most boys given the name in a single year was 2,117, in 2005. For comparison, it was #320 in 2015 and #770 in 1950.
Social Security card records list Marco in 116 years of the 146 from 1880 to 2025, starting in 1910 with 5 babies. In all, 76,917 US babies have been given the name, 0.4% of them girls and 99.5% boys. Its busiest decade was the 2000s, with 19,152 babies named Marco.
Over the 10 years from 2016 to 2025, 8,813 US boys were named Marco; the busiest of those years was 2016, with 1,063. In 2025 that was about 1 in 1,982 of the boys in SSA’s list for the year.
Among the states, Marco ranked highest in Texas in 2025, at #249 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Mark (1,366,672 babies since 1880), Marcus (242,999 babies since 1880), Marc (141,137 babies since 1880) and Marcos (53,742 babies since 1880). Rarer spellings such as Marcua, Markco and Marcoa are summarised on this page.