In 2025, 114 US boys were named Kallum, making it the 1,522nd most common boys’ name of the year, up 279 places from #1,801 in 2024. That is 23 more than the 91 boys named Kallum in 2024. Its best rank for boys was #1,522, reached in this year, 2025. That year also had the most boys given the name: 114. For comparison, it was #4,967 in 2015 and unranked in 1950.
Social Security card records list Kallum in 18 years of the 146 from 1880 to 2025, starting in 2007 with 8 babies. In all, 697 US babies have been given the name, all of them boys. Its busiest decade was the 2020s, with 477 babies named Kallum.
Over the 10 years from 2016 to 2025, 598 US boys were named Kallum; the busiest of those years was 2025, with 114. In 2025 that was about 1 in 14,983 of the boys in SSA’s list for the year.
Among the states, Kallum ranked highest in Oklahoma in 2025, at #663 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Callum (16,089 babies since 1880), Calum (3,506 babies since 1880) and Caelum (928 babies since 1880). Rarer spellings such as Kaleem, Kaylem and Kaliym are summarised on this page.