Raghunathpur Assembly constituency is an assembly constituency in Siwan district in the Indian state of Bihar.

As per Delimitation of Parliamentary and Assembly constituencies Order, 2008, No.

108 Raghunathpur Assembly constituency is composed of the following: Raghunathpur and Hussainganj community development blocks; Shekpura, Piyaur, Aranda, Gayghat and Usari Bujurg gram panchayats of Hasanpura CD Block.

[1] Raghunathpur Assembly constituency is part of No.

[1] Raghunathpur consists of village's like Rajpur, Kausar, Murarpatti, Mathia, Semaria, Narakatia, Khap banakat, Narhan, Adampur, Lagusa, Nikhti, Jhakhara etc.