Mangalore Lok Sabha constituency was one of the Lok Sabha constituencies in Karnataka state in southern India. With the implementation of the delimitation of parliamentary constituencies in 2008, based on the recommendations of the Delimitation Commission of India constituted in 2002, this constituency ceased to exist.
South Kanara (South) Lok Sabha constituency comprised the following six Legislative Assembly segments:[3]
1) Panamangalore (Panemangalore), 2) Mangalore, 3) Kasargod, 4) Hosdurg (Kanhangad), 5 and 6) Two Puttur seats