Cassia may refer to:
Given name
edit- Cassia, Kezia or Keziah, a female surname of Biblical origin
- the female gentilicium name of the Cassia gens in ancient Rome
- Cassia or Kassia, Byzantine abbess and music scholar
- Cássia Eller (1962–2001), Brazilian musician
- Cássia Kiss (born 1958), Brazilian actress
- Cassià Maria Just (1926–2008), Catalan abbot
- Cassia O'Reilly (born 1996), Irish singer-songwriter
Fictional characters
edit- Cassia, a fictional playable character in Heroes of the Storm
- Cassia Maria Reyes, the protagonist of the Matched trilogy by Ally Condie