Nagina Lok Sabha constituency (Hindi pronunciation: [n̪əgiːn̪aː]) is one of the 80 Lok Sabha (parliamentary) constituencies in Uttar Pradesh state in northern India.

This constituency came into existence in 2008, as a part of delimitation of parliamentary constituencies based on the recommendations of the Delimitation Commission of India constituted in 2002 Presently, Nagina Lok Sabha constituency comprises six Vidhan Sabha (legislative assembly) segments.

These are:[2]