Cunha, Euclides da, 1866-1909, Brazilian writer. After his military service, Cunha became a civil engineer and a journalist. He wrote several historical works but is remembered for only one book, Os sertões (1902, tr. Rebellion in the Backlands, 1944), an account of a rebellion against the Brazilian government led by a religious fanatic, Antônio Conselheiro, in 1896-97. The book is a pessimistic narrative, embellished with lengthy descriptions of the Brazilian landscape and living conditions; it is primarily concerned with the state of mankind in Brazil. Its power and sincerity counterbalance its complexity of style and racist doctrine.

Euclides da Cunha Paulista is a municipality in the state of São Paulo in Brazil. It is named mainly after Euclides da Cunha, a Brazilian writer. The population in 2004 is 10,547 and the area is 578.63 km². The elevation is 265 m.