Siraha 2 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 2 incorporates Nawarajpur Rural Municipality, Bariyarpatti Rural Municipality, Aurahi Rural Municipality, Sukhipur Municipality, wards 4 and 5 of Arnama Rural Municipality, wards 3–14 of Dhangadhimai Municipality, ward 1 of Laxmipur Patari Rural Municipality and ward 13 of Golbazar Municipality.

It encompasses the following Provincial Assembly of Madhesh Province segment