Sheohar (pronounced Shivahar) is an administrative district in the Mithila region of Bihar in India.

Eminent Hindi Novelist, Dr. Bhagwati Sharan Mishra was the first District magistrate of Sheohar.

[2] Sivas used to have a guest house in the Mehsi town of his time, which is still located in the name of Raja Bazar in East Champaran.The district occupies an area of 349 km2 and has a population of 656,246 (as of 2011).

It is one of the most flood-affected districts in Bihar, due to over flooding of the Bagmati and Budhi Gandak rivers.

In 2006 the Ministry of Panchayati Raj named Sheohar one of the country's 250 most backward districts (out of a total of 640).

According to the 2011 census Sheohar district has a population of 656,246,[3] roughly equal to the nation of Montenegro[8] or the US state of Vermont.