The baby name Cassius appears in baby name data for the United States from 1964 to 2024. It was most popular in 2021 with 670 babies given the name.
In the later years of this period, Cassius has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1964 | 92 |
| 1965 | 16 |
| 1966 | 10 |
| 1967 | 6 |
| 1969 | 5 |
| 1971 | 29 |
| 1972 | 5 |
| 1985 | 5 |
| 1990 | 5 |
| 1991 | 17 |
| 1992 | 10 |
| 1993 | 23 |
| 1996 | 11 |
| 1998 | 5 |
| 1999 | 10 |
| 2000 | 10 |
| 2001 | 12 |
| 2002 | 5 |
| 2004 | 26 |
| 2005 | 56 |
| 2006 | 89 |
| 2007 | 80 |
| 2008 | 189 |
| 2009 | 150 |
| 2010 | 120 |
| 2011 | 207 |
| 2012 | 177 |
| 2013 | 271 |
| 2014 | 323 |
| 2015 | 436 |
| 2016 | 527 |
| 2017 | 473 |
| 2018 | 496 |
| 2019 | 633 |
| 2020 | 593 |
| 2021 | 670 |
| 2022 | 542 |
| 2023 | 479 |
| 2024 | 467 |