In 2025, 10,219 US boys were named Lucas, making it the 10th most common boys’ name of the year, down 1 place from #9 in 2024. That is 524 fewer than the 10,743 boys named Lucas in 2024. Its best rank for boys was #8, reached in 2022. The most boys given the name in a single year was 13,032, in 2017. For comparison, it was #16 in 2015 and #1,520 in 1950.
Social Security card records list Lucas in 138 years of the 146 from 1880 to 2025, starting in 1881 with 11 babies. In all, 331,628 US babies have been given the name, 0.2% of them girls and 99.8% boys. Its busiest decade was the 2010s, with 118,790 babies named Lucas.
Over the 10 years from 2016 to 2025, 116,881 US boys were named Lucas; the busiest of those years was 2017, with 13,032. In 2025 that was about 1 in 167 of the boys in SSA’s list for the year.
Among the states, Lucas ranked highest in Florida in 2025, at #3 for boys there. It was in the top 100 in 51 states (counting DC). Related spellings in the SSA files include Luke (323,585 babies since 1880), Luca (79,211 babies since 1880), Lukas (44,072 babies since 1880) and Luka (29,522 babies since 1880). Rarer spellings such as Lukus, Lukasz and Loukas are summarised on this page. The open nickname list we use links it to Luke.