In 2025, 24 US boys were named Nikolaus, making it the 4,346th most common boys’ name of the year, down 681 places from #3,665 in 2024. That is 7 fewer than the 31 boys named Nikolaus in 2024. Its best rank for boys was #1,086, reached in 1980. The most boys given the name in a single year was 98, in 1994. For comparison, it was #4,505 in 2015 and unranked in 1950.
Social Security card records list Nikolaus in 60 years of the 146 from 1880 to 2025, starting in 1955 with 5 babies. In all, 2,656 US babies have been given the name, all of them boys. Its busiest decade was the 1990s, with 830 babies named Nikolaus.
Over the 10 years from 2016 to 2025, 250 US boys were named Nikolaus; the busiest of those years was 2021, with 33. In 2025 that was about 1 in 71,170 of the boys in SSA’s list for the year.
Related spellings in the SSA files include Nicholas (929,199 babies since 1880), Nicolas (101,764 babies since 1880), Nikolas (24,050 babies since 1880) and Niko (15,135 babies since 1880).