Bambang Soesatyo (born 10 September 1962), more colloquially referred to as Bamsoet, is an Indonesian politician and businessman, who served as the 15th speaker of the People's Consultative Assembly between 2019 and 2024, and as a member of the House of Representatives since 2009.

Following his graduation in 1985, he completed a pre-MBA course at the Institute for Management Education and Development (IPPM), before attaining a degree in public administration from Indonesia Open University in 1988.

Later, he was part of a special committee investigating a controversial Rp 6.7 trillion bailout for Bank Century, given during the financial crisis of 2007–2008, which involved finance minister Sri Mulyani Indrawati and later Vice President Boediono.

[13] Bambang was also a member of a special committee (Panitia Khusus/Pansus) for the Corruption Eradication Commission (KPK), seen by many observers as an attempt to restrict the anti-graft body's powers.

[14] Bambang called for the sacking of the chairman of the Audit Board of Indonesia in 2016 when the body's investigation into a hospital purchase by the Jakarta Provincial Government was contradicted by the Corruption Eradication Commission (KPK) which found no violations.

[16] He called for the expansion of regulations against homosexuality in Indonesia, blaming online social media for the spread of LGBT groups and claiming that 3 percent of the population would be gay without citing his source.

[22] While some analysts praised Bambang's appointment based on his seniority and political experience, others cited a possible conflict of interest due to his involvement in the special committee conducting an inquiry into KPK.

He is one of the five former and current lawmakers as witnesses in relation to two suspects in the case, namely businessmen Made Oka Masagung and Irvanto Hendra Pambudi – the latter is also the nephew of ex-House of Representatives speaker and graft convict Setya Novanto.

[29] In 2013, Indonesian businessman Muhammad Nazaruddin upon investigation by Corruption Eradication Commission (KPK) had named two Golkar Party politicians Aziz Syamsudin and Bambang Soesatyo and the Indonesian Democratic Party of Struggle (PDIP) in Commission III of the House of Representatives, who were supposed to be involved in the alleged corruption procurement simulators of two and four-wheeled driving licenses at the Traffic Corps of Police Headquarters of fiscal year 2011.