Tuanku Syed Sirajuddin Sirajuddin ibni Syed Putra Jamalullail is the current Raja of Perlis, serving since 17 April 2000. He served as the 12th Yang di-Pertuan Agong from 13 December 2001 to 12 December 2006 and 7th Raja of Perlis since 2000.
Tuanku Syed Sirajuddin Sirajuddin was born on 17 May 1943 in Arau, Perlis.He is the second of ten children of HRH Almarhum Tuanku Syed Putra Jamalullail and Tengku Budriah binti Almarhum Tengku Ismail.
In October 1960, he was proclaimed as the Raja Muda (Crown Prince) of Perlis while still a student.
Tuanku Syed Sirajuddin ibni Almarhum Tuanku Syed Putra Jamalullail was installed as the twelfth ruler of Perlis on 17 April 2000, the day after his father, Tuanku Syed Putra Jamalullail , who had been Raja since 1945, and at that time the world's longest reigning monarch, died.
Tuanku Syed Sirajuddin was elected the 12th Yang di-Pertuan Agong of Malaysia on 13 December 2001. This was earlier than expected because the Sultan of Selangor and the previous 11th Yang di-Pertuan Agong, died on 21 November 2001 while his term should have ended in 2004. Tuanku Syed Sirajuddin's term ended on 12 December 2006.
On 15 February 1967, he married Tengku Fauziah binti Tengku Abdul Rashid who became the Raja Puan Muda of Perlis.
Tuanku Syed Sirajuddin has a son, Tuanku Syed Faizuddin Putra the curret Raja Muda (crown prince) who was born on 30 December 1967 and a daughter Sharifah Fazira, born on 5 June 1973.