| Cox's Bazar-1 | |
| Parl Name: | Jatiya Sangsad |
| District: | Cox's Bazar District |
| Region Label: | Division |
| Region: | Chittagong Division |
| Electorate: | 390,829 (2018) |
| Year: | 1984 |
| Party Label: | Parliamentary Party |
| Party: | None |
| Members Label: | Member of Parliament |
| Members: | Vacant |
| Local Council Label: | Council area |
| Blank1 Name: | Prev. Constituency |
| Blank1 Info: | Chittagong-16 (Constituency 293) |
| Blank2 Name: | Next Constituency |
| Blank2 Info: | Cox's Bazar-2 (Constituency 295) |
Cox's Bazar-1 is a constituency represented in the Jatiya Sangsad (National Parliament) of Bangladesh. Since 6 August 2024 the constituency is Vacant.
The constituency encompasses Chakaria and Pekua upazilas.
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.