Adda may refer to any of the following characters.
- Adda of Cidaris, the second wife of King Goidemar, mother of Cedric, and daughter of Liam of Cidaris.
- Adda of Temeria, the sister and lover of King Foltest of Temeria, mother of Adda the White.
- Adda the White, the daughter of Foltest and his sister Adda, condemned to striga form by a curse lifted by Geralt.