Western Bolivian Guaraní, known locally as Simba and Simba Guaraní, is a Guaraní language

Guaraní languages

The Guaraní languages are a group of half a dozen or so languages in the Tupí–Guaraní language family. The best known language in this family is Guaraní, the national language of Paraguay.The Guaraní languages are:...

 spoken in Bolivia

Bolivia

Bolivia officially known as Plurinational State of Bolivia , is a landlocked country in central South America. It is the poorest country in South America...

, in the Chuquisaca Department

Chuquisaca Department

Chuquisaca is a department of Bolivia located in the center south. It borders on the departments of Cochabamba, Tarija, Potosí, and Santa Cruz. The departmental capital is Sucre, which is also the constitutional capital of Bolivia.-Geography:...

 north of the Pilcomayo River

Pilcomayo River

The Pilcomayo River is a river in central South America. At long, it is the longest western tributary of the Paraguay River. Its drainage basin is in area, and its mean discharge is ....

.

Western Bolivian Guaraní is one of a number of "Guaraní dialects" considered distinct languages by Ethnologue

Ethnologue

Ethnologue: Languages of the World is a web and print publication of SIL International , a Christian linguistic service organization, which studies lesser-known languages, to provide the speakers with Bibles in their native language and support their efforts in language development.The Ethnologue...

: Chiripá

Chiripá

Chiripá Guarani , also known as Ava Guarani and Nhandéva , is a Guaraní language spoken in Paraguay, Brazil, and also Argentina. It is closely related to Paraguayan Guaraní, a language which speakers are increasingly switching to. There are 4,900 speakers in Brazil and 7,000 in Paraguay.Nhandéva is...

, Eastern Bolivian Guaraní

Eastern Bolivian Guaraní

Eastern Bolivian Guaraní, known locally as Chawuncu or Chiriguano, is a Guaraní language spoken in South America. In Bolivia 33,670 speakers were counted in the year 2000, in the south-central Parapeti River area and in the city of Tarija...

, Mbyá Guaraní

Mbyá Guaraní

Mbyá Guaraní is a Tupi–Guaraní language spoken 16,050 Brazilians, 3,000 Argentines, and 8,000 Paraguayans. It is 75% lexically similar to Paraguayan Guaraní.Mbyá Guaraní is one of a number of "Guaraní dialects" now generally classified as distinct languages....

, Aché, Kaiwá, Xetá, and Paraguayan Guaraní. Of these, Paraguayan Guaraní is by far the most widely spoken variety and it is often referred to simply as Guaraní.