| Feni-3 | |
| Parl Name: | Jatiya Sangsad |
| District: | Feni District |
| Region Label: | Division |
| Region: | Chittagong Division |
| Electorate: | 393,454 (2018) |
| Year: | 1984 |
| Members Label: | Member of Parliament |
| Members: | Vacant |
| Party Label: | Parliamentary Party |
| Party: | None |
| Blank1 Name: | Previous Constituency |
| Blank1 Info: | Feni-2 (Constituency 266) |
| Blank2 Name: | Next Constituency |
| Blank2 Info: | Noakhali-1 (Constituency 268) |
| Previous: | Noakhali-3 |
Feni-3 is a constituency of the Jatiya Sangsad (National Parliament) of Bangladesh.Since 6 August 2024 the constituency is vacant
The constituency encompasses Daganbhuiyan and Sonagazi upazilas.
The constituency was created in 1984 from the Noakhali-3 constituency when the former Noakhali District was split into three districts: Feni, Noakhali, and Lakshmipur.
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.