Kastiel is a distinctive boys' name in United States, ranking #6148 in 2014 with 14 recorded births. This places Kastiel in the top 44% 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 29 births ranking #3779. In 2014, approximately 1 in every 137,174 boys born was named Kastiel. STABLE Recent data shows the name is currently stable.