| Official Name: | Au, Guinea |
| Pushpin Map: | Guinea |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Guinea |
| Subdivision Type: | Country |
| Subdivision Name: | Guinea |
| Subdivision Name1: | Kankan Region |
| Unit Pref: | Imperial |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 11.8833°N -61°W |
Au is a town in the Kankan Region of eastern Guinea, north of the Niger River.