KGPAA Paku Alam IX (7 May 1938 – 21 November 2015) was the ruler of Pakualaman, in central Java, Indonesia.

His court name before he became Paku Alam IX was Bendara Raden Mas Ambarkusumo.

[3] Like his predecessor, he was also the vice-governor of the Yogyakarta Special Region, serving under Sultan Hamengkubuwana X.

[6] He is buried in the family cemetery in Girigondo in the nearby Kulon Progo district.

[7] On 7 January 2016, his eldest son Kanjeng Gusti Pangeran Haryo (KGPH) Suryodilogo succeeded him as Paku Alam X.