Sunamganj-3 is a constituency represented in the Jatiya Sangsad (National Parliament) of Bangladesh since 2008 by M. A. Mannan of the Awami League.

The constituency encompasses Shantiganj and Jagannathpur upazilas.

[4] Abdus Samad Azad died in April 2005.

[11] Islami Oikya Jote leader Shahinur Pasha Chowdhury was elected in a July 2005 by-election.

He defeated Awami League candidate M. A. Mannan, Jatiya Party (Ershad) candidate Syed Ali Ahmed, independent candidate M. Nazrul Islam, and five other lower-polling contenders.