Aizen is a distinctive boys' name in United States, ranking #8187 in 2007 with 9 recorded births. This places Aizen in the bottom 43% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2024 with 223 births ranking #1003. In 2007, approximately 1 in every 230,582 boys born was named Aizen. STABLE Recent data shows the name is currently stable.