Narsingdi-1 is a constituency represented in the Jatiya Sangsad (National Parliament) of Bangladesh since 2008 by Muhammad Nazrul Islam of the Awami League.

The constituency encompasses all but three union parishads of Narsingdi Sadar Upazila: Amdia, Meher Para, and Panchdona.

Ahead of the 2008 general election, the Election Commission redrew constituency boundaries to reflect population changes revealed by the 2001 Bangladesh census.

Previously it excluded a fourth union parishad of Narsingdi Sadar Upazila: Silmandi.

[12] Khairul Islam Khokon of the BNP was elected in a June by-election.