Meaning and history
Cassian comes from the Roman cognomen Cassianus, which was derived from the family name Cassius. It was borne by several saints, including a 3rd-century martyr from Tangier who is the patron saint of stenographers and a 5th-century mystic who founded a monastery in Marseille.
20062006: 8 births, rank #8,732
2007: no US SSA record for this spelling
2008: 13 births, rank #6,393
2009: 17 births, rank #5,334
2010: 14 births, rank #6,036
20112011: 11 births, rank #7,009
2012: 22 births, rank #4,390
2013: 13 births, rank #6,241
2014: 19 births, rank #4,866
2015: 19 births, rank #4,890
20162016: 19 births, rank #4,943
2017: 128 births, rank #1,378
2018: 136 births, rank #1,328
2019: 132 births, rank #1,354
2020: 196 births, rank #1,035
20212021: 230 births, rank #968
2022: 244 births, rank #938
2023: 557 births, rank #529
2024: 464 births, rank #617
20252025: 633 births, rank #479
Cassian rose from #617 to #479 for boys between 2024 and 2025. That year also produced its highest recorded birth count, at 633.