| Diego Barros Arana | |
| Birth Date: | August 16, 1830 |
| Birth Place: | Santiago, Chile |
| Death Place: | Santiago, Chile |
| Discipline: | History of Chile |
| Known For: | Historia General de Chile |
Diego Jacinto Agustín Barros Arana (pronounced as /es-419/; August 16, 1830 – November 4, 1907) was a Chilean professor, legislator, minister and diplomat. He is considered the most important Chilean historian of the 19th century. His main work General History of Chile (Spanish; Castilian: Historia General de Chile) is a 15-volume work that spanned over 300 years of the nation's history.
Barros Arana was of Basque descent.[1] He also was an educator and a diplomat. He was director of the Instituto Nacional, a public high school, and of the University of Chile.