In 2025, 10 US boys were named Mateusz, making it the 8,023rd most common boys’ name of the year, up 5,503 places from #13,526 in 2024. That is 5 more than the 5 boys named Mateusz in 2024. Its best rank for boys was #1,717, reached in 1997. The most boys given the name in a single year was 62, in 2008. For comparison, it was #5,649 in 2015 and unranked in 1950.
Social Security card records list Mateusz in 39 years of the 146 from 1880 to 2025, starting in 1987 with 6 babies. In all, 1,156 US babies have been given the name, all of them boys. Its busiest decade was the 2000s, with 505 babies named Mateusz.
Over the 10 years from 2016 to 2025, 84 US boys were named Mateusz; the busiest of those years was 2016, with 17. In 2025 that was about 1 in 170,808 of the boys in SSA’s list for the year.
Related spellings in the SSA files include Matthew (1,659,655 babies since 1880), Mateo (126,778 babies since 1880), Mathew (77,745 babies since 1880) and Matteo (33,499 babies since 1880).