In 2025, 107 US boys were named Karl, making it the 1,593rd most common boys’ name of the year, up 100 places from #1,693 in 2024. That is 8 more than the 99 boys named Karl in 2024. Its best rank for boys was #135, reached in 1964. The most boys given the name in a single year was 2,594, in 1960. For comparison, it was #1,075 in 2015 and #172 in 1950.
Social Security card records list Karl in every one of the 146 years from 1880 to 2025; in 1880 there were 21 babies with the name. In all, 101,751 US babies have been given the name, 0.9% of them girls and 99% boys. Its busiest decade was the 1960s, with 21,404 babies named Karl.
Over the 10 years from 2016 to 2025, 1,250 US boys were named Karl; the busiest of those years was 2016, with 167. In 2025 that was about 1 in 15,963 of the boys in SSA’s list for the year.
Among the states, Karl ranked highest in New Jersey in 2025, at #676 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Charles (2,447,135 babies since 1880), Carl (508,017 babies since 1880), Carlos (309,076 babies since 1880) and Carlo (16,000 babies since 1880). Rarer spellings such as Kalle are summarised on this page.