Maharajganj is a Community development block in district of Siwan, in Bihar state of India.

The headquarter of the block is at Maharajganj town.

Total area of the block is 115.48 square kilometres (44.59 sq mi) and the total population of the block as of 2011 census of India is 190,217.

Maharajganj block is divided into one Nagar Panchayat (City council) and many Gram panchayats (Village councils).

[2] This article related to a location in Bihar is a stub.