Saptari 3 is one of four parliamentary constituencies of Saptari District in Nepal.

This constituency came into existence on the Constituency Delimitation Commission (CDC) report submitted on 31 August 2017.

[1]Saptari 3 incorporates Rupani Rural Municipality, Bishnupur Rural Municipality, Belhi Chapena Rural Municipality, Sambhunath Municipality and Dakneshwari Municipality.

It encompasses the following Provincial Assembly of Madhesh Province segment