The Coig River () is a river of Argentina. It originates in Laguna La Esperanza, which is located near the Argentine border with Chile and Ruta Nacional 40. It empties into Bahía Grande, and the Coyle estuary's end is defined by two points, Punta Norte and Punta Sur.
See also List of rivers of Argentina
References Rand McNally, The New International Atlas, 1993. GEOnet Names Server