Belsand is an assembly constituency in Sitamarhi district in the Indian state of Bihar.

As per Delimitation of Parliamentary and Assembly constituencies Order, 2008, 30.

Belsand Assembly constituency is composed of the following: Belsand and Parsauni community development blocks in Sitamarhi district and Tariani Chowk CD Block in Sheohar district.

[1] Belsand Assembly constituency is part of 4.

Sheohar (Lok Sabha constituency).