| Waly Diantang | |
| Other Name: | Wali |
| Native Name: | Wali |
| Nickname: | Wali |
| Settlement Type: | Commune de waly Diantang |
| Pushpin Map: | Mauritania |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Mauritania |
| Subdivision Type: | Country |
| Subdivision Name: |  Mauritania |
| Subdivision Type1: | Region |
| Subdivision Name1: | Gorgol |
| Subdivision Type2: | Department |
| Subdivision Name2: | Maghama |
| Leader Title: | Mayor |
| Leader Name: | Oumar Gorbal Sy |
| Unit Pref: | Imperial |
| Population As Of: | 2013 |
| Population Total: | 12,026 |
| Population Blank1 Title: | Ethnicities |
| Population Blank1: | Fula |
| Timezone: | GMT |
| Utc Offset: | +0 |
| Coordinates: | 15.3333°N -64°W |
| Official Name: | Waly |
Waly Diantang is a village and rural commune in the Gorgol Region in southern Mauritania, near the Senegal River. It is also spelled Wali Diantang and is often referred to as just Waly (or Wali). Waly Diantang was the legendary founder of the town.
It is a medium size town where the people speak Fula. The economy is based on wetland sorghum cultivation (samé walo).
The people used to fish in the river called the Mayel, but now it is dry. Kolongal Walo is the agricultural area near the Mayel River. In addition, Oumar Bocar Camara from Wali Diantang remembers these Mayel River shores (river access points):
Tufnde Mayel, Tufnde Gambol,Tufnde Kone,Tufnde Toulel,Tufnde Lassimayel (river end)
These are places where the Walian, Toulelian, Sinthiane Padalal, Bedinkian, Barkewi, and the Barkatou people would catch fish. They would use,,, and, which are types of fish trap and other equipment for catching fish.