In 2025, 11 US boys were named Nicklaus, making it the 7,535th most common boys’ name of the year, down 2,536 places from #4,999 in 2024. That is 9 fewer than the 20 boys named Nicklaus in 2024. Its best rank for boys was #891, reached in 1997. That year also had the most boys given the name: 156. For comparison, it was #5,452 in 2015 and unranked in 1950.
Social Security card records list Nicklaus in 60 years of the 146 from 1880 to 2025, starting in 1964 with 5 babies. In all, 3,462 US babies have been given the name, all of them boys. Its busiest decade was the 1990s, with 1,178 babies named Nicklaus.
Over the 10 years from 2016 to 2025, 218 US boys were named Nicklaus; the busiest of those years was 2016, with 35. In 2025 that was about 1 in 155,280 of the boys in SSA’s list for the year.
Related spellings in the SSA files include Niklaus (2,430 babies since 1880), Nicklas (2,430 babies since 1880) and Niklas (1,711 babies since 1880). Rarer spellings such as Nicklos, Nicklous and Nicklus are summarised on this page.