Cassius

Boy's name · #583 in the US (2025) · 2020s wave

Popularity over time

Cassius reached its best rank, #430, in 1880 and ranked #583 in 2025. Roughly 9,700 boys have been named Cassius since 1880.

See where Cassius is more common.

Appears in 2020-2025 birth records of 38 states. See the full state-by-state map on this page.

See how Cassius ranks in other countries and regions.

#319 in England & Wales (2025) · #1,447 in Sweden (2025) · #866 in Canada (2024).

Cassius Dio — Greco-Roman statesman and historian (c. 155–c. 235)
Cassius Longinus — Syrian/Egyptian Neoplatonist philosopher (c. 213–273)
Cassius Chaerea — Assassin of emperor Caligula
Cassius Marcellus Coolidge — American artist (1844–1934)
Cassius M. Clay — American planter, politician and ambassador to Russia (1810–1903)

Among 82 notable people named Cassius:

Lawyers & judges appear 2.14× more often than among typical names — e.g. Cassius Gaius Foster, American judge (1837–1899).

Browse more boy names — popularity, trends and eras for 5,700+ American names, free.