Almarhum Sultan Sir Alaeddin Sulaiman Shah ibni Almarhum Raja Muda MusaGCMG, KCVO, (11 September 1863-31 March 1938) was the fifth Sultan of Selangor from 1898 until 1938. He was previously known as Tengku Sulaiman Shah before being crowned Sultan.
It was during Sultan Sulaiman's rule that Istana Alam Shah was built in 1905. The Sultan went on to live in the palace for 35 years until his death in 1938.