| Siwan | |
|---|---|
| Constituency No. 105 for the Bihar Legislative Assembly | |
 | |
| Constituency details | |
| Country | India |
| Region | East India |
| State | Bihar |
| District | Siwan |
| LS constituency | Siwan |
| Established | 1951 |
| Member of Legislative Assembly | |
| 17th Bihar Legislative Assembly | |
| Incumbent | |
| Party |  RJD |
| Alliance | Mahagathbandhan |
| Elected year | 2020 |
| Preceded by | Vyas Deo Prasad BJP |
Siwan is an assembly constituency in Siwan district in the Indian state of Bihar. In 2015 Bihar Legislative Assembly election, Siwan will be one of the 36 seats to have VVPAT enabled electronic voting machines.[1][2]