In 2025, 6 US boys were named Keifer, making it the 11,364th most common boys’ name of the year. Its best rank for boys was #926, reached in 1991. That year also had the most boys given the name: 131. For comparison, it was #11,434 in 2015 and unranked in 1950.
Social Security card records list Keifer in 35 years of the 146 from 1880 to 2025, starting in 1970 with 10 babies. In all, 1,155 US babies have been given the name, all of them boys. Its busiest decade was the 1990s, with 668 babies named Keifer.
Over the 10 years from 2016 to 2025, 41 US boys were named Keifer; the busiest of those years was 2020, with 9. In 2025 that was about 1 in 284,679 of the boys in SSA’s list for the year.
Related spellings in the SSA files include Kiefer (1,950 babies since 1880).