The story of Blu
Blu is rare for boys in the United States, ranked #2,890 in 2025 with 43 babies given the name. It is currently rising compared with a decade ago.
Since 1970, 828 American babies have been named Blu, about 61% boys and 39% girls, making it a genuinely unisex name. Its peak came in 2021, when 86 newborns received the name, the signature sound of the 2020s.
The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Blu stood among all boys' names in any year, or use the compare tool to plot it against other names.