Sri Sultan Hamengkubuwono IX (Hanacaraka: ꦯꦿꦶꦯꦸꦭ꧀ꦡꦟ꧀ꦲꦩꦼꦁꦑꦸꦨꦸꦮꦟ꧇꧙꧇, often abbreviated as HB IX was an Indonesian politician and Javanese royal who was the second vice president of Indonesia, the ninth sultan of Yogyakarta, and the first governor of the Special Region of Yogyakarta. Hamengkubuwono IX was also the chairman of the first National Scout Movement Quarter and was known as the Father of the Indonesian Scouts.

Yogyakarta is the capital city of the Special Region of Yogyakarta in Indonesia, in the south-central part of the island of Java. As the only Indonesian royal city still ruled by a monarchy, Yogyakarta is regarded as an important centre for classical Javanese fine arts and culture such as ballet, batik textiles, drama, literature, music, poetry, silversmithing, visual arts, and wayang puppetry. Renowned as a centre of Indonesian education, Yogyakarta is home to a large student population and dozens of schools and universities, including Gadjah Mada University, the country's largest institute of higher education and one of its most prestigious.