Tumatumari is a community in the Potaro-Siparuni Region of Guyana, located some 15 km upstream of the confluence of the Potaro and Essequibo Rivers.

It was initially an Amerindian settlement of Arawak tribe but is now a mixture of different race groups similar to that of Mahdia.

The area was believed to be rich in gold and diamonds and mining was the main economic activity for several years.

The centre concentrated on training young people to develop agricultural and technical skills.

The Amerindians settled in El Paso, Micobie and Tumatumari Landing became a little hamlet.