Cox's Bazar-1 is a constituency represented in the Jatiya Sangsad (National Parliament) of Bangladesh.
The constituency encompasses Chakaria and Pekua, integrating both upazilas under a single administrative and electoral boundary.
The constituency was created in 1984 from a Chittagong constituency when the former Chittagong District was split into two districts: Chittagong and Cox's Bazar.
Mohammed Ellias was elected unopposed in the 2014 general election after opposition parties withdrew their candidacies in a boycott of the election.