In 2025, 419 US boys were named Lionel, making it the 659th most common boys’ name of the year, down 97 places from #562 in 2024. That is 110 fewer than the 529 boys named Lionel in 2024. Its best rank for boys was #295, reached in 1934. The most boys given the name in a single year was 609, in 2023. For comparison, it was #645 in 2015 and #355 in 1950.
Social Security card records list Lionel in 145 years of the 146 from 1880 to 2025, starting in 1880 with 8 babies. In all, 33,833 US babies have been given the name, 0.1% of them girls and 99.8% boys. Its busiest decade was the 2010s, with 3,674 babies named Lionel.
Over the 10 years from 2016 to 2025, 4,594 US boys were named Lionel; the busiest of those years was 2023, with 609. In 2025 that was about 1 in 4,077 of the boys in SSA’s list for the year.
Among the states, Lionel ranked highest in California in 2025, at #381 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Leonel (27,072 babies since 1880). Rarer spellings such as Lionell, Linell and Lyonel are summarised on this page. The open nickname list we use links it to Leon.