Queen Isyana

{{infobox royalty

|regnal name = Sri Ishanatunggawijaya

|spouse = Lokapala

|issue = Makutawangsa Wardhana

|father = Rakai Halu Dyah Siṇḍok

|mother = Rakryan Parameswari Dyah Kbi

|succession = Queen of Mataram

|reign = 947 – ?

|predecessor= Rakai Hino Dyah Siṇḍok

|successor= Makutawangsa Wardhana

|royal house = Ishana

}}

Isyana stylized as Sri Isyana Tunggawijaya was a queen regnant of Mataram Kingdom, in East Java, that ruled since 947 CE. She co-reigned with her spouse, Sri Lokapala.{{cite book | title = Mengenal Kerajaan-Kerajaan Nusantara | publisher = Pustaka Widyatama | year = 2009 | isbn = 9789796103096| language = Indonesian | page = 29 | url = https://books.google.com/books?id=cGaEClsMFLQC&q=Sri+Isyana+Tunggawijaya&pg=PA29}} The Isyana dynasty, established by her father, Mpu Sindok that ruled Java circa the 10th century CE, was named after her.{{cite book | title = The Territories of Indonesia, Europa territories of the world series | editor = Iem Brown | publisher = Routledge | year = 2004 | isbn = 9781135355418| page = 68 | url = https://books.google.com/books?id=lfPJAwAAQBAJ&q=Isyana+dynasty&pg=PA68}}