Blu is a distinctive boys' name in United States, ranking #6683 in 2014 with 12 recorded births. This places Blu in the top 47% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2021 with 48 births ranking #2656. In 2014, approximately 1 in every 160,037 boys born was named Blu. FALLING Recent data shows the name is currently falling.