The Gulf of Guayaquil is a large body of water of the Pacific Ocean in western South America. Its northern limit is the city of Salinas, in Ecuador, and its southern limit is Punta Pariñas, in Peru.
The gulf takes its name from the city of Guayaquil. Rivers of both Ecuador and Peru empty in the Gulf of Guayaquil, like the Guayas River, the Jubones River, the Zarumilla River and the Tumbes River.