| Guettioua Formation | |
| Type: | Geological formation |
| Age: | Bathonian-Callovian, |
| Period: | Bathonian |
| Prilithology: | Sandstone |
| Otherlithology: | Siltstone, marl |
| Region: | Azilal Province, Beni Mellal, Ouarzazate Province |
| Country: |  Morocco |
| Coordinates: | 32.5°N -5.8°W |
| Paleocoordinates: | 27.9°N -1.4°W |
| Underlies: | Iouaridène Formation |
| Overlies: | Tilougguit Formation |
| Thickness: | Around 281m (922feet) |
| Extent: | Béni Mellal-Khénifra |
The Guettioua Formation is a geological formation in Morocco. It dates back to the Middle Jurassic.[1] It largely consists of sandstone, and is of continental origin. It is the lateral equivalent of the marine El Mers Formation.