Thakurgaon-1 is a constituency represented in the Jatiya Sangsad (National Parliament) of Bangladesh. The current Member of Parliament in this constituency is Mirza Fakhrul Islam Alamgir of Bangladesh Nationalist Party.
The constituency encompasses Thakurgaon Sadar Upazila.
The constituency was created in 1984 when the former Dinajpur District was split into three districts: Panchagarh, Thakurgaon, and Dinajpur.
Khademul Islam died in December 1996. Ramesh Chandra Sen was elected in a February 1997 by-election.