Kushtia-1 is a constituency represented in the Jatiya Sangsad (National Parliament) of Bangladesh. Since 13th February 2026, the constituency is represented by Reza Ahmed Bacchu Molla, a candidate of the Bangladesh Nationalist Party.
The constituency encompasses Daulatpur Upazila.
The constituency was created for the first general elections in newly independent Bangladesh, held in 1973.
Ahsanul Haq Mollah died in December 2003. Bachhu Mollah, his son, was elected in a March 2004 by-election.