- Source of Wealth: Banking, Tobacco
- Birth Place: Kudus, East Java Indonesia
- Marital Status: Married
- Full Name: Michael Bambang Hartono (Oei Gwie Siong)
- Nationality: Indonesian-Chinese
- Date of Birth: 1941
- Ethnicity: Chinese
- Occupation: Businessman, Co-Owner of Djarum
- Education: Diponegoro University
- Children: 4
Indonesian businessman Michael Hartono has an estimated net worth of $14.1 billion in April 2019. Michael Bambang Hartono was born in 1941 in Jakarta Indonesia. He attended Diponegoro University where he studied economics. He is currently married with four children.
Like his brother R. Budi, Most of Hartono’s wealth is derived from his shares in Bank Central Asia which is considered as the largest bank in Indonesia. They also acquired their net worths from Djarum, a clove cigarette maker which they inherited from their father. However, the sale of Djarum and other clove cigarettes was banned from the U.S. starting in 2009. Eventually, Dos Hermanos was introduced by Djarum. Dos Hermanos specializes in manufacturing premium cigarettes that blend Indonesian and Brazilian tobaccos.
Known to have interests in diverse industries, Hartono and Budi also have interests in Palm Oil as well as in Grand Indonesia, a hotel complex, office building and luxury shopping mall based in Jakarta Indonesia.