Caste is a system of social stratification and hierarchy in human societies. It may also refer to:
- Caste system in India
- Caste: The Origins of Our Discontents, a 2020 book by Isabel Wilkerson
- Caste (play), a play by Thomas William Robertson
- Caste (1930 film), a British film
- Caste (biology), a group in eusocial animals
- Casta, mixed-raced individuals in colonial Spanish America