Gerrit Augustinus Siwabessy (19 August 1914 – 11 November 1982) was an Indonesian politician who served as the ninth Minister of Health from July 1966 until March 1978, during the presidencies of Sukarno and Suharto.

Because Leuwol was a teacher, Siwabessy and his family enjoyed a higher social status on a par with pastors and priests while he attended elementary and middle school.

[2] During Siwabessy's first years as an undergraduate, he attended a conference of the local Studenten Vereniging Christen (Christian Student Association) which took place in Kaliurang, a small town within the vicinity of Yogyakarta.

[3] During the later years of his studies, Siwabessy created a more substantial organisation called Memadjoekan Cultuur Maloekoe or MCM ("Advancement of the Moluccan Culture") in 1938.

The premise of the association was to provide a means of cultural unity for Moluccan students experiencing "a nomadic nostalgia, an urge for identity or personality".

Suharto, now the leader of Indonesia's army, gradually siphoned Sukarno's power towards himself, an action emphasised with the passing of the Supersemar decree.

Having developed the skilled labour necessary during the first Repelita, the second aimed to eradicated infectious diseases, enact stricter drug and food control laws, establish health education programs, improve the nutrition of Indonesia's residents, augment Indonesia's physical infrastructure, and further train and more efficiently use health personnel in the country.

Together, the Repelita programs and Samijaga demonstrated Siwabessy's ability to create and successfully implement policies on health, earning him another WHO award.