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Sutoyo Siswomiharjo

1922 – 1965

Indonesian general

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About Sutoyo Siswomiharjo

Lived 1922 – 1965 (aged 43). Sutoyo Siswomiharjo was an Indonesian military personnel.

Siswomiharjo on a 1966 Indonesian stamp from the series "National heroes" Major General Sutoyo Siswomiharjo (28 August 1922 – 1 October 1965) was an Indonesian general and one of six army generals kidnapped and later murdered during the attempted coup by the 30 September Movement.

Early life Sutoyo was born in Karanganyar, Kebumen, Central Java. He finished school before the Japanese invasion in 1942, and during the Japanese occupation, he studied governmental administration in Jakarta. He then worked as a government employee in Purworejo, but resigned in 1944.

Career with the Indonesian military After the Indonesian Declaration of Independence in 1945, Sutoyo joined the Police section of the People's Security Army (TKR), the forerunner of the Indonesian Army. This then became the Indonesian Military Police. In June 1946, he was appointed adjutant to Colonel Gatot Soebroto, commander of the Army Police. He rose steadily through the ranks within the Military Police, and in 1954 became chief of staff at Military Police Headquarters.

He held this position for two years before being posted to London to serve as the assistant military attaché at the Indonesian embassy. After training at the Indonesian Army Command and General Staff College in Bandung from 1959 to 1960, he was appointed Acting Army Judicial Inspector, then because of his legal experience, in 1961 he was appointed to the post of Judge Advocate General of the Army.

Death According to the official account by the Government of Indonesia, he was kidnapped in the early hours of 1 October 1965. Members of the 30 September Movement led by Sergeant Major Surono entered Sutoyo's house on Jalan Sumenep, Menteng, Central Jakarta. They gained entry through a garage at the side of the house. They forced his maid to hand over the key, entered the house and told Sutoyo he had been summoned by President Sukarno.

They then took him to their base at Lubang Buaya. There, he was killed and his body thrown into a disused well. Like those of his other murdered colleagues, his body was recovered on 4 October and he was given a state funeral the next day. He was posthumously promoted to major general and made a Hero of the Revolution.

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Important facts

Birth century
Occupation
Nationality
Awards
National Hero of Indonesia

People in Sutoyo Siswomiharjo's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Sutoyo Siswomiharjo's

Frequently asked questions

Who was Sutoyo Siswomiharjo?

Indonesian general (1922-1965)

When was Sutoyo Siswomiharjo born?

Sutoyo Siswomiharjo was born on 28 August 1922 in Central Java.

When did Sutoyo Siswomiharjo die?

Sutoyo Siswomiharjo died on 1 October 1965 in Jakarta.

What was Sutoyo Siswomiharjo's occupation?

Sutoyo Siswomiharjo was a military personnel.

What nationality was Sutoyo Siswomiharjo?

Sutoyo Siswomiharjo was Indonesian.

Sources & further reading

· Wikipedia: Sutoyo Siswomiharjo

· Wikidata: Q4201513

· DBpedia: Sutoyo Siswomiharjo

Cite this page

APA: Biography.guide. (2026). Sutoyo Siswomiharjo. https://biography.guide/sutoyo-siswomiharjo/

MLA: "Sutoyo Siswomiharjo." Biography.guide, https://biography.guide/sutoyo-siswomiharjo/.

Chicago: "Sutoyo Siswomiharjo." Biography.guide. https://biography.guide/sutoyo-siswomiharjo/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

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