Odia, also spelled Oriya or Odiya, may refer to:
- Odia people in Odisha, India
- Odia language, an Indian language, belonging to the Indo-Aryan branch of the Indo-European language family
- Odia alphabet, a writing system used for the Odia language
- Oriya (Unicode block), a block of Odia characters in Unicode
- Odia (name), including a list of people with the name
