Sondang Tiar Debora Tampubolon (born 18 November 1983) is an Indonesian politician who is a member of the House of Representatives, representing Jakarta's 1st electoral district (East Jakarta).

She studied in Jakarta, graduating from St. Ursula Catholic School in 2000.

She obtained a bachelors degree in engineering physics from the Bandung Institute of Technology in 2010.

She had worked as a manager for a fuel station in Bandung and as a project manager in Cimahi, before joining NT Corp [id] (PT Bangkitgiat Usaha Mandiri) in 2010.

She was elected as one of two PDI-P legislators in the district after winning 36,185 votes.