Buxar Lok Sabha constituency is one of the 40 Lok Sabha (parliamentary) constituencies in Bihar state in eastern India.
Presently, Buxar Lok Sabha constituency comprises the following six legislative assembly segments:
As Shahabad North-West Lok Sabha constituency in 1st Lok Sabha.
As present day Buxar Lok Sabha constituency from 2nd Lok Sabha onwards.The following is the list of the Members of Parliament elected from this constituency