Fewer than five US girls were named Mackenzy in 2025, so it does not appear in that year’s SSA list for girls. Its best rank for girls was #2,277, reached in 2001. That year also had the most girls given the name: 71. For comparison, it was #4,197 in 2015 and unranked in 1950.
Social Security card records list Mackenzy in 38 years of the 146 from 1880 to 2025, starting in 1986 with 6 babies. In all, 1,203 US babies have been given the name, 90% of them girls and 9.9% boys. Its busiest decade was the 2000s, with 574 babies named Mackenzy.
Over the 10 years from 2016 to 2025, 107 US girls were named Mackenzy; the busiest of those years was 2016, with 19.
Related spellings in the SSA files include Mackenzie (149,135 babies since 1880), Makenzi (3,631 babies since 1880), Mackenzi (2,061 babies since 1880) and Makenzy (1,476 babies since 1880). Rarer spellings such as Mackensey and Mackinzey are summarised on this page.