Islam | Sunni Islam | Shia Islam | Prophets in Islam | Nation of Islam | Islam Karimov | Islam in the United States | Five Pillars of Islam | Encyclopaedia of Islam | Ahmed Mohamed Islam | Shi'a Islam | Historiography of early Islam | Kazi Nazrul Islam | Islam in Ethiopia | Darul Islam (Indonesia) | Darul Islam | Saif al-Islam Gaddafi | Obsession: Radical Islam's War Against the West | Naeem Islam | Islam in India | Islam in China | History of Islam in southern Italy | Hijra (Islam) | Chashi Nazrul Islam | Ansar al-Islam | Afrika Islam | Twelver Shi'ah Islam | Polygyny in Islam | Jamiat Ulama-e-Islam Nazryati | Islam in Zambia |
(Raden Mas) Hadji Oemar Said Tjokroaminoto (August 16, 1882 – December 17, 1934) was a nationalist, the first leader of Sarekat Dagang Islam (Islamic Trade Union, later Sarekat Islam) in Indonesia.