The Guayquiraró River (Spanish, Río Guayquiraró) is a river in the Mesopotamic northeastern region of Argentina. It is born in the middle section of the border between the provinces of Entre Ríos and Corrientes, fed from several streams on its right-hand basin. It flows west along the interprovincial border for about , then emptying into the Paraná River, at a base level of about AMSL.
The river's drainage basin covers an area of , and its mean annual flow is .
See also List of rivers of Argentina
References
Secretaría de Minería de la Nación. Provincia de Corrientes - Recursos hídricos.