In 2025, 11,045 US boys were named Mateo, making it the 8th most common boys’ name of the year, down 1 place from #7 in 2024. That is 304 fewer than the 11,349 boys named Mateo in 2024. Its best rank for boys was #6, reached in 2023. The most boys given the name in a single year was 11,349, in 2024. For comparison, it was #85 in 2015 and #2,082 in 1950.
Social Security card records list Mateo in 108 years of the 146 from 1880 to 2025, starting in 1904 with 5 babies. In all, 126,778 US babies have been given the name, 0.1% of them girls and 99.9% boys. Its busiest decade was the 2020s, with 62,327 babies named Mateo.
Over the 10 years from 2016 to 2025, 93,848 US boys were named Mateo; the busiest of those years was 2024, with 11,349. In 2025 that was about 1 in 155 of the boys in SSA’s list for the year.
Among the states, Mateo ranked highest in Nevada in 2025, at #2 for boys there. It was in the top 100 in 46 states (counting DC). Related spellings in the SSA files include Matthew (1,659,655 babies since 1880), Mathew (77,745 babies since 1880), Matteo (33,499 babies since 1880) and Mathias (15,544 babies since 1880). Rarer spellings such as Matea, Matheu and Mathea are summarised on this page.