| Pétaka | |
| Settlement Type: | Commune and village |
| Pushpin Map: | Mali |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Mali |
| Subdivision Type: | Country |
| Subdivision Name: |  Mali |
| Subdivision Type1: | Region |
| Subdivision Name1: | Mopti Region |
| Subdivision Type2: | Cercle |
| Subdivision Name2: | Douentza Cercle |
| Area Total Km2: | 234 |
| Population As Of: | 2009 census |
| Population Footnotes: | [1] |
| Population Total: | 6010 |
| Population Density Km2: | auto |
| Population Blank1 Title: | Ethnicities |
| Utc Offset: | +0 |
| Coordinates: | 15.025°N -2.8489°W |
| Elevation M: | 289 |
Pétaka is a village and rural commune in the Cercle of Douentza in the Mopti Region of Mali. The commune contains five villages and had a population of 6,010 in the 2009 census.