Tunku Puan Zanariah (Tengku Zanariah binti Almarhum Tengku Ahmad; born 5 July 1940) is the second wife of Sultan Iskandar of Johor from their marriage in 1961 until his death in 2010. She served as Raja Permaisuri Agong between 1984 and 1989. Her sister, Tengku Nora, was married to her father-in-law, Sultan Ismail.