Siraha 4 is one of four parliamentary constituencies of Siraha District in Nepal.

This constituency came into existence on the Constituency Delimitation Commission (CDC) report submitted on 31 August 2017.

[1]Siraha 4 incorporates Karjanha Municipality, Mirchaiya Municipality, kalyanpur Municipality, wards 3–5 of Naraha Rural Municipality and wards 2–4 of Bishnupur Rural Municipality It encompasses the following Province No.

2 Provincial Assembly segment