The Iloilo River located in the Province of Iloilo, Philippines is actually an estuary.
The river starts in Oton at Batiano River, which is also an estuary. It then traverses the Iloilo City districts of Lapuz, Lapaz, Mandurriao, Molo, Arevalo and the city proper, before emptying into the Iloilo Strait.
Iloilo River wharf has a natural harbor which made it a preferred port of call for ships seeking protection from strong winds and tropical monsoons. It serves as port for inter=island ferries that travel from Iloilo City to Bacolod City on Negros and to Guimaras. It is also drop-off point for fishing vessels that bring in their catch from the sea to be delivered to markets all over Iloilo.
The Port of Iloilo was opened for international trade on 1855 and the coming of British Vice-consul Nicholas Loney, a year later, that led to the fast development of sugar industry in the region.
There is Iloilo River Esplanade Project planned for the river's banks.