In 2025, 43 US boys were named Blu, making it the 2,890th most common boys’ name of the year, up 732 places from #3,622 in 2024. That is 12 more than the 31 boys named Blu in 2024. Its best rank for boys was #2,656, reached in 2021. The most boys given the name in a single year was 48, in 2023. For comparison, it was #6,040 in 2015 and unranked in 1950.
In 2025, 18 US girls were named Blu, making it the 6,364th most common girls’ name of the year, down 1,186 places from #5,178 in 2024. That is 7 fewer than the 25 girls named Blu in 2024. Its best rank for girls was #3,839, reached in 2022. That year also had the most girls given the name: 39. For comparison, it was #10,272 in 2015 and unranked in 1950.
Social Security card records list Blu in 35 years of the 146 from 1880 to 2025, starting in 1970 with 5 babies. In all, 828 US babies have been given the name, 39% of them girls and 61% boys. Its busiest decade was the 2020s, with 421 babies named Blu.
Over the 10 years from 2016 to 2025, 325 US boys were named Blu; the busiest of those years was 2023, with 48. In 2025 that was about 1 in 39,723 of the boys in SSA’s list for the year.
Among the states, Blu ranked highest in Oklahoma in 2025, at #711 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Blue (1,453 babies since 1880).