Jamalpur-1 is a constituency represented in the Jatiya Sangsad (National Parliament) of Bangladesh. M. Rashiduzzaman Millat is the incumbent representative of this constituency since 17 February 2026.
The constituency encompasses Baksiganj and Dewanganj upazilas.
The constituency was created in 1978, when the former Mymensingh District was split into two districts: Jamalpur and Mymensingh.