The Louisiana and Northwest Railroad (reporting mark LNW) is a short-line railroad headquartered in Homer, Louisiana.

LNW operates a 62.6-mile (100.7 km) line in Arkansas and Louisiana from McNeil, Arkansas (where it interchanges with Union Pacific Railroad), to Gibsland, Louisiana (where it interchanges with Canadian Pacific Kansas City).

The 6.5-mile (10.5 km) section from McNeil to Magnolia, Arkansas, is leased from Union Pacific.

On June 10, 2008, Patriot Rail Corporation announced that it had purchased LNW for an undisclosed amount.

This United States railway company-related article is a stub.