In 2025, 44 US girls were named Dempsey, making it the 3,479th most common girls’ name of the year, up 1,214 places from #4,693 in 2024. That is 15 more than the 29 girls named Dempsey in 2024. Its best rank for girls was #3,479, reached in this year, 2025. That year also had the most girls given the name: 44. For comparison, it was #4,012 in 2015 and unranked in 1950.
In 2025, 41 US boys were named Dempsey, making it the 3,004th most common boys’ name of the year, down 163 places from #2,841 in 2024. That is 4 fewer than the 45 boys named Dempsey in 2024. Its best rank for boys was #579, reached in 1880. The most boys given the name in a single year was 108, in 1921. For comparison, it was #2,003 in 2015 and #1,170 in 1950.
Social Security card records list Dempsey in 138 years of the 146 from 1880 to 2025, starting in 1880 with 11 babies. In all, 4,799 US babies have been given the name, 11% of them girls and 89% boys. Its busiest decade was the 2010s, with 931 babies named Dempsey.
Over the 10 years from 2016 to 2025, 290 US girls were named Dempsey; the busiest of those years was 2025, with 44. In 2025 that was about 1 in 36,529 of the girls in SSA’s list for the year.
Rarer spellings such as Dempsy and Dempsie are summarised on this page.