In 2025, 469 US boys were named Nikolai, making it the 605th most common boys’ name of the year, down 11 places from #594 in 2024. That is 15 fewer than the 484 boys named Nikolai in 2024. Its best rank for boys was #474, reached in 2018. The most boys given the name in a single year was 639, in 2016. For comparison, it was #476 in 2015 and unranked in 1950.
Social Security card records list Nikolai in 63 years of the 146 from 1880 to 2025, starting in 1960 with 6 babies. In all, 11,027 US babies have been given the name, all of them boys. Its busiest decade was the 2010s, with 5,060 babies named Nikolai.
Over the 10 years from 2016 to 2025, 5,437 US boys were named Nikolai; the busiest of those years was 2016, with 639. In 2025 that was about 1 in 3,642 of the boys in SSA’s list for the year.
Among the states, Nikolai ranked highest in New Mexico in 2025, at #259 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Nicolas (101,764 babies since 1880), Niko (15,135 babies since 1880), Nicolai (1,865 babies since 1880) and Nicola (8,090 babies since 1880). Rarer spellings such as Nickolai, Nikyla and Nickola are summarised on this page.