Tadeo Zarratea Dávalos (born 28 October 1946) is a Paraguayan lawyer, activist, linguist, and author. He became famous as the author of Kalaito Pombero, one of the first novels to ever be written in the Guarani language.
Tadeo Zarratea was born on 28 October 1946 in Yuty. He graduated as lawyer and linguist from the Universidad Nacional de Asunción.