| Native Name: | Préfecture du Guéra |
| Conventional Long Name: | Guéra Prefecture |
| Common Name: | Guéra |
| Subdivision: | Prefecture |
| Nation: | Chad |
| Government Type: | Prefecture |
| Capital: | Mongo |
| Political Subdiv: | [1]
|
| Year Start: | 1960 |
| Year End: | 1999 |
| Event Start: | Established[2] |
| Date Start: | 13 February |
| Event End: | Disestablished |
| Date End: | 1 September |
| Era: | Cold War |
| Flag: | Flag of Chad |
| P1: | Batha Region |
| Flag P1: | Flag of Chad.svg |
| P2: | Salamat Region |
| Flag P2: | Flag of Chad.svg |
| S1: | Guéra Department |
| Flag S1: | Flag of Chad.svg |
| Stat Year1: | 1960 |
| Stat Area1: | 60000 |
| Stat Pop1: | 156002 |
| Stat Year2: | 1993 |
| Stat Area2: | 58950 |
| Stat Pop2: | 306253 |
| Footnotes: | Area and population source: |
Guéra was one of the 14 prefectures of Chad. Its capital was Mongo. Located in the south of the country, Guéra covered an area of 58,950 square kilometers and had a population of 306,253 in 1993, of which 263,843 were sedentary (rural: 219,884; urban: 43,959) and 42,810 were nomadic. The predominant ethno-linguistic groups were the Hadjerai (66.18%) and the Arabs (21.11%).