Meaning and Name Origin
Cassius \c(as)-sius\ as a boys' name is pronounced KASH-us. It is of Latin origin. Possibly "empty, hollow". An old Roman family clan name. Shakespeare's Julius Caesar depicts Caius Cassius as politically ambitious. In modern times, Cassius Clay was the birth name of the heavyweight boxer Muhammad Ali.
For more on this name, see also the related boy name Cassian.
Cassius has 1 feminine form: Cassia.
Cassius is an unusual given name for men but a somewhat prominent last name for all people (#65101 out of 88799, Top 73%). (2000 U.S. Census)
Presented below is the baby name popularity of Cassius for boys. Cassius reached its highest position of #684 in the U.S. then, and is at #704 currently. (2014 Birth Statistics)
Below is a graphed analysis of the popularity of Cassius and corresponding names. The only other popular related form of Cassius (#704 a year ago) appearing in the Top 1000 is Cash (#275 a year ago). These boy names are at the apex of their popularity presently. Cassius (#704) and Cash (#275) are two of the more fashionable boy names here, with Cassius undergoing a rekindling in popularity. (2014 Birth Statistics)