Belgrano Cargas S.A. was an Argentine State-owned company which operated the 10,841 km (6,736 mi) 1,000 mm metre gauge gauge freight rail network built by Central Northern and Province of Santa Fe Railways, which became part of Belgrano Railway network after railway nationalization of 1948.

The General Manuel Belgrano Railway (FCGMB), named after the Argentine politician and military leader Manuel Belgrano, is a 1,000 mm metre gauge railway and the longest of the Argentine system. It was one of the six State-owned Argentine railway companies formed after President Juan Perón's nationalisation of the railway network in 1948.