In 2025, 35 US boys were named Jeff, making it the 3,342nd most common boys’ name of the year, down 411 places from #2,931 in 2024. That is 8 fewer than the 43 boys named Jeff in 2024. Its best rank for boys was #44, reached in 1962. The most boys given the name in a single year was 9,463, in 1961. For comparison, it was #2,004 in 2015 and #291 in 1950.
Social Security card records list Jeff in every one of the 146 years from 1880 to 2025; in 1880 there were 66 babies with the name. In all, 120,502 US babies have been given the name, 0.2% of them girls and 99.7% boys. Its busiest decade was the 1960s, with 62,219 babies named Jeff.
Over the 10 years from 2016 to 2025, 495 US boys were named Jeff; the busiest of those years was 2018, with 67. In 2025 that was about 1 in 48,802 of the boys in SSA’s list for the year.
Related spellings in the SSA files include Jeffrey (983,099 babies since 1880) and Geoff (1,549 babies since 1880). Rarer spellings such as Jefe and Jeffer are summarised on this page.