Leptodactylus chaquensis is a species of frog in the Leptodactylidae family. Its local name is "rana criolla" ("Creole frog") but that name is used for congeners elsewhere too.It is found in Argentina, Bolivia, Brazil, Paraguay, Uruguay, and possibly Peru.Its natural habitats are moist savanna, temperate shrubland, subtropical or tropical dry shrubland, subtropical or tropical moist shrubland, temperate grassland, subtropical or tropical dry lowland grassland, subtropical or tropical seasonally wet or flooded lowland grassland, freshwater lakes, freshwater marshes, pastureland, rural gardens, and heavily degraded former forest.