Tunku Puan Zanariah Iskandar, formerly known as Sultanah Zanariah, was the second wife of the fourth Sultan of modern Johor, Sultan Iskandar from their marriage in 1961 until his death in 2010. She served as Raja Permaisuri Agong between 1984 and 1989.

Sultan Iskandar ibni Almarhum Sultan Ismail was Sultan of Johor, succeeding his father Sultan Ismail upon the latter's death in 1981. He previously reigned as the eighth Yang di-Pertuan Agong, the constitutional monarch of Malaysia, from 1984 to 1989. Sultan Iskandar's reign lasted for almost 29 years until his own death in 2010.