Cassiel is a distinctive boys' name in United States, ranking #5756 in 2012 with 15 recorded births. This places Cassiel in the top 40% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2025 with 54 births ranking #2488. In 2012, approximately 1 in every 126,442 boys born was named Cassiel. RISING Recent data shows the name is currently rising.