| Khulna-3 | |
| Parl Name: | Jatiya Sangsad |
| District: | Khulna District |
| Region Label: | Division |
| Region: | Khulna Division |
| Electorate: | 226,281 (2018) |
| Year: | 1973 |
Khulna-3 is a constituency represented in the Jatiya Sangsad (National Parliament) of Bangladesh since 2008 by Monnujan Sufian of the Awami League.
The constituency encompasses Khulna City Corporation wards 1 through 15, and two union parishads of Dighalia Upazila: Aronghata and Jogipole.
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.
Ahead of the 2018 general election, the Election Commission expanded the boundaries of the constituency by adding one union parishad of Dighalia Upazila: Ayongghata.