The Tuyutí River is a significant waterway located in Paraguay. It flows through the Paraguayan region and is known for its role in the local ecosystem. The river is a tributary of the Paraguay River, contributing to the region's biodiversity and providing habitats for various species of fish and wildlife. Historically, the Tuyutí River gained attention during the War of the Triple Alliance in the 19th century. Its banks were the site of important military engagements, influencing the course of the conflict. Today, the river remains a vital resource for local communities, supporting agriculture and fishing activities.