Guthani is a community development block and a revenue circle in Siwan district of the Indian state of Bihar, lying on the banks of river Chhoti Gandak.

The block is divided into ten gram panchayats (rural area) and one city council, Nagar Panchayat Guthani (urban area).

The total area of the block is 91.70 square kilometres (35.41 sq mi) and the total population of the block as of the 2011 census of India is 128,155.

[2] The following are the gram panchayats of Guthani block in Siwan subdivision, Siwan district.

This article related to a location in Bihar is a stub.