| Sonai Assembly constituency | |
| Constituency No: | 119 |
| Type: | SLA |
| State: | Assam |
| Latest Election Year: | 2021 |
| Loksabha Cons: | Silchar |
| District: | Cachar |
| Established: | 1951 |
| Reservation: | None |
| Mla: | Karim Uddin Barbhuiya (saju) |
| Party: | All India United Democratic Front |
| Alliance: | None |
Sonai Assembly constituency is one of the 126 state legislative assembly constituencies in Assam state in North Eastern India. It is also one of the 7 state legislative assembly constituencies included in the Silchar Lok Sabha constituency. Sonai
As per orders of the Delimitation Commission, No.10 Sonai Assembly constituency is composed of the following:Sonai thana [excluding circle Nos. 32 (Part), 65, 66, Boaligrant in circle No. 54 (Part) and Hill Punjee and forest villages] and circle Nos. 28 to 31 and 35 in Silchar thana and circle No. 58 (Part) in Dholai thana in Silchar sub-division.