| Cumilla-1 | |
| Parl Name: | Jatiya Sangsad |
| District: | Comilla District |
| Region Label: | Division |
| Region: | Chittagong Division |
| Electorate: | 347,071 (2018) |
| Year: | 1973 |
| Members Label: | Member of Parliament |
| Members: | Vacant |
| Party Label: | Parliamentary Party |
| Party: | None |
| Blank1 Name: | Previous Constituency |
| Blank1 Info: | Brahmanbaria-6 (Constituency 248) |
| Blank2 Name: | Next Constituency |
| Blank2 Info: | Comilla-2 (Constituency 250) |
Cumilla-1 is a constituency of the Jatiya Sangsad (National Parliament) of Bangladesh. Since 6 August, 2024 the constituency is vacant
The constituency encompasses Daudkandi and Megna upazilas.
The constituency was created for the first general elections in newly independent Bangladesh, held in 1973.
Ahead of the 2008 general election, the Election Commission redrew constituency boundaries to reflect population changes revealed by the 2001 Bangladesh census. The 2008 redistricting altered the boundaries of the constituency.