Gregorio López Fuentes (17 November 1897 – 10 December 1976) was a Mexican writer known for his best work A Letter to God.
In his youth he spent much time in his father’s general store, where he came in contact with the Indians, farmers, and labourers of the region, whose lives he would later describe with deep insight.
After unsuccessful efforts at poetry and novels, he began to draw upon his experiences in the Revolution.
His first success, Campamento (1931; “Encampment”), was followed by several others dealing with aspects of the Revolution, including Tierra (1932; “Earth”), a novel about the Mexican revolutionary Emiliano Zapata; Mi general!
He is also famous for his fictional story of 'A Letter to God' which was included in English Textbook for Grade 10, NCERT.