Gandab or Gand Ab () may refer to the following locations in Iran: Gandab, Chaharmahal and Bakhtiari Gandab, Golestan Gandab, Ilam Gandab, Kerman Gandab, Kermanshah Gandab, Javanrud, Kermanshah Province Gandab-e Olya, Kermanshah Gandab-e Sofla, Kermanshah Gandab, Kurdistan Gandab-e Olya, Kurdistan Gandab-e Sofla, Kurdistan Gand Ab, Borujerd, Lorestan Province Gandab, Dorud, Lorestan Province Gandab, Markazi Gandab, Mazandaran Gandab, Razavi Khorasan Gandab, Fariman, Razavi Khorasan Province Gandab, Semnan Gandab, Zanjan