In 2025, 249 US boys were named Kenji, making it the 944th most common boys’ name of the year, down 88 places from #856 in 2024. That is 35 fewer than the 284 boys named Kenji in 2024. Its best rank for boys was #750, reached in 1978. The most boys given the name in a single year was 337, in 2022. For comparison, it was #1,410 in 2015 and unranked in 1950.
Social Security card records list Kenji in 99 years of the 146 from 1880 to 2025, starting in 1913 with 5 babies. In all, 5,657 US babies have been given the name, 0.6% of them girls and 99% boys. Its busiest decade was the 2020s, with 1,692 babies named Kenji.
Over the 10 years from 2016 to 2025, 2,251 US boys were named Kenji; the busiest of those years was 2022, with 337. In 2025 that was about 1 in 6,860 of the boys in SSA’s list for the year.
Among the states, Kenji ranked highest in Hawaii in 2025, at #135 for boys there. It was not in the top 100 of any state. Rarer spellings such as Kinji are summarised on this page.