Rhodia may refer to:
In Greek mythology: Rhodia, a goddess, one of the Muses Rhodea, Rhodeia, or Rhodia, a nymph, one of the Oceanids Rhodia, one of the Danaïdes, daughters of Danaus, king of Libya Rhodia, a city, also called Rhodiopolis, of ancient Lycia 437 Rhodia, an asteroid Rhodia (company), a French chemical company Rhodia, a fictional planet in The Stars, Like Dust, an Isaac Asimov novel
See also Lex Rhodia, a Byzantine law