In 2025, 257 US boys were named Leif, making it the 917th most common boys’ name of the year, up 11 places from #928 in 2024. That is 7 more than the 250 boys named Leif in 2024. Its best rank for boys was #638, reached in 1979. The most boys given the name in a single year was 290, in 2022. For comparison, it was #1,063 in 2015 and #1,135 in 1950.
Social Security card records list Leif in 114 years of the 146 from 1880 to 2025, starting in 1912 with 7 babies. In all, 10,002 US babies have been given the name, all of them boys. Its busiest decade was the 2010s, with 1,971 babies named Leif.
Over the 10 years from 2016 to 2025, 2,386 US boys were named Leif; the busiest of those years was 2022, with 290. In 2025 that was about 1 in 6,646 of the boys in SSA’s list for the year.
Among the states, Leif ranked highest in Montana in 2025, at #264 for boys there. It was not in the top 100 of any state. Rarer spellings such as Lief, Leaf and Life are summarised on this page.