In 2025, 71 US boys were named Kalen, making it the 2,086th most common boys’ name of the year, down 37 places from #2,049 in 2024. That is 3 fewer than the 74 boys named Kalen in 2024. Its best rank for boys was #859, reached in 1998. That year also had the most boys given the name: 169. For comparison, it was #2,123 in 2015 and unranked in 1950.
In 2025, 9 US girls were named Kalen, making it the 10,487th most common girls’ name of the year. Its best rank for girls was #2,134, reached in 1994. That year also had the most girls given the name: 64. For comparison, it was #7,794 in 2015 and unranked in 1950.
Social Security card records list Kalen in 68 years of the 146 from 1880 to 2025, starting in 1952 with 5 babies. In all, 6,096 US babies have been given the name, 24% of them girls and 76% boys. Its busiest decade was the 1990s, with 1,716 babies named Kalen.
Over the 10 years from 2016 to 2025, 715 US boys were named Kalen; the busiest of those years was 2021, with 101. In 2025 that was about 1 in 24,057 of the boys in SSA’s list for the year.
Among the states, Kalen ranked highest in Texas in 2025, at #1,833 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Kale (7,605 babies since 1880), Kaylin (19,934 babies since 1880), Kaelyn (15,648 babies since 1880) and Kailyn (14,351 babies since 1880).