Sutoyo Siswomiharjo
| Sutoyo Siswomiharjo | |
|---|---|
| Born | 28 August 1922 Karanganyar, Kebumen, Kedu Residency, Dutch East Indies | 
| Died | 1 October 1965 (aged 43) Lubang Buaya, East Jakarta, Indonesia | 
| Buried | 6°15′26″S 106°50′46″E / 6.25722°S 106.84611°E | 
| Allegiance | Indonesia | 
| Years of service | 1945–1965 | 
| Rank | Brigadier General (at death) Major General (posthumously) | 
| Battles / wars | Indonesian National Revolution | 
| Awards | National Hero of Indonesia | 
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.