In 2025, 49 US girls were named Mackenna, making it the 3,233rd most common girls’ name of the year, down 235 places from #2,998 in 2024. That is 6 fewer than the 55 girls named Mackenna in 2024. Its best rank for girls was #1,322, reached in 2008. That year also had the most girls given the name: 187. For comparison, it was #1,944 in 2015 and unranked in 1950.
Social Security card records list Mackenna in 40 years of the 146 from 1880 to 2025, starting in 1986 with 5 babies. In all, 3,668 US babies have been given the name, 99.7% of them girls and 0.2% boys. Its busiest decade was the 2000s, with 1,498 babies named Mackenna.
Over the 10 years from 2016 to 2025, 772 US girls were named Mackenna; the busiest of those years was 2016, with 109. In 2025 that was about 1 in 32,801 of the girls in SSA’s list for the year.
Related spellings in the SSA files include Makenna (33,749 babies since 1880) and Makena (6,652 babies since 1880).