Istana Siraj (GPS: 3.15142, 101.72137) is a palace located on Jalan Eaton in Kuala Lumpur. It is located next to Istana Perlis. Both palaces belong to the Raja of Perlis. Istana Siraj served as the official residence of the Raja of Perlis when he was serving as the Yang DiPertuan Agong. It was named after His Majesty himself, whose name is Tuanku Syed Sirajuddin ibni Almarhum Tuanku Syed Putra Jamalullail.