Jhalokati-1 is a constituency represented in the Jatiya Sangsad (National Parliament) of Bangladesh. Since 6 August 2024, the constituency remains vacant.
The constituency encompasses Kathalia and Rajapur upazilas.
The constituency was created in 1984 from the Bakerganj-12 constituency when the former Bakerganj District was split into four districts: Bhola, Bakerganj, Jhalokati, and Pirojpur.