Sundarpur Union () is a union parishad of Fatikchhari Upazila of Chittagong District.

Geography Area:

Location North: Bhujpur Thana East: Rangamatia Union South: Suabil Union West: Harualchari Union

Population At the 1991 Bangladesh census, Sundarpur Union had a population of 16,949.

References , lcgbangladesh.org