Thakurgaon-3 is a constituency represented in the Jatiya Sangsad (National Parliament) of Bangladesh. The current Member of Parliament in this constituency is Jahidur Rahman of Bangladesh Nationalist Party.
The constituency encompasses Pirganj Upazila, Ranisankail Municipality, and six union parishads of Ranisankail Upazila: Bachor, Hossain Gaon, Lehemba, Nonduar, Nekmarad, and Raton.
The constituency was created in 1984 from the Dinajpur-5 constituency when the former Dinajpur District was split into three districts: Panchagarh, Thakurgaon, and Dinajpur.