| Official Name: | Ab Gui |
| Native Name: | اب گوئي |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Fars |
| Subdivision Type2: | County |
| Subdivision Name2: | Larestan |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Sahray-ye Bagh |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Emad Deh |
| Population As Of: | 2006 |
| Population Total: | 20 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 27.4631°N 53.8969°W |
Ab Gui (Persian: اب گوئي, also Romanized as Āb Gū’ī; also known as Ābkūhī) is a village in Emad Deh Rural District, Sahray-ye Bagh District, Larestan County, Fars Province, Iran. At the 2006 census, its population was 20, in 5 families.