Cassian is a distinctive boys' name in United States, ranking #5361 in 2009 with 17 recorded births. The name reached its all-time peak in 2025 with 633 births ranking #479. In 2009, approximately 1 in every 116,665 boys born was named Cassian. RISING Recent data shows the name is currently rising.
Cassian is a refined Latin name connected with the Roman family-name world. Its appeal in modern naming comes more from its polished sound and early Christian history than from one widely known literal meaning.
The name appears in late Roman and early Christian history and later returned through literary and style-led revival. It now feels elegant, distinctive, and slightly scholarly.