Oemar Said Tjokroaminoto

Oemar Said Tjokroaminoto
Born(1882-08-16)16 August 1882
Died17 December 1934(1934-12-17) (aged 52)
Yogyakarta, Dutch East Indies
CitizenshipIndonesian
TitleFounder and chairman of Sarekat Islam
SpouseSuharsikin
Children5

Oemar Said Tjokroaminoto (16 August 1882 – 17 December 1934), better known in Indonesia as H.O.S. Tjokroaminoto, was an Indonesian nationalist. He became one of the leaders of the Islamic Trade Union (Indonesian: Syarekat Dagang Islam), founded by Samanhudi, which became Sarekat Islam, which they both cofounded.