Masinton Pasaribu (born 11 February 1971) is an Indonesian politician from PDI-P and former activist who served as a member of the House of Representatives between 2014 and 2024.

After completing high school, he spent some time as a freelance laborer at the Port of Belawan before moving to Jakarta to study law, graduating in 2003.

[3] There, he became one of the founders and served as chairman of REPDEM (Indonesian: Relawan Perjuangan Demokrasi, "Volunteers for Democratic Struggle"), which became one of PDI-P's wings.

[2] In the 2014 Indonesian legislative election, Pasaribu ran for a seat in the People's Representative Council from Jakarta's 2nd electoral district and won after securing 30,989 votes.

[5] During an investigation into the Corruption Eradication Commission (KPK), Pasaribu became the deputy chairman of the committee responsible for some time, until he was replaced.