There are six species of Baboon: 
1. the Olive Baboon (Equatorial Africa), 
2. the Yellow Baboon (Eastern Africa),  
3. the Chacma Baboon (Southern Africa),
4. the Kinda Baboon (Angola, Congo, Zambia),
5. the Guinea Baboon (Western Africa), and 
6. the Hamadryas Baboon (Ethiopia, Somalia and Yemen). 

The largest is the Chacma Baboon (up to 1.2m) and the smallest is the Kinda Baboon (up to 50cm).
Botswana has the Chacma Baboon, the largest of the five baboon species. 

Moremi Game Reserve, Botswana, 21 November 2001