The Barauni–Samastipur section is a railway line connecting Barauni to Samastipur in the Indian state of Bihar.

The 50.54 km (31 mi) line passes through the plains of North Bihar and the Gangetic Plain in Bihar.

Former Railway Minister Lalu Prasad Yadav announced for the electrification of the Barauni–Samastipur–Muzaffarpur–Hajipur line and Muzaffarpur–Gorakhpur line (via Hajipur, Raxaul and Sitamarhi) in the Rail Budget 2008.

But the first passenger train to run with an electric locomotive was Maurya Express w.e.f.

There are 9 stations between Barauni and Samastipur Junction.