Formosa is the capital city of Formosa Department, Formosa Province, Argentina. It is traditionally inhabited by Tobas and Matacos Indians. Created in April 1879, Formosa had been the capital of the Territorio Nacional del Chaco from 1884 to ?.
- Population: 165,700 (1990s); 225,123 (early 2000s)
- Geographic coordinates: 26.2° S 58.2° W