| Thạnh Ngãi | |
| Settlement Type: | Commune and village |
| Native Name: | Xã Thạnh Ngãi |
| Pushpin Map: | Vietnam |
| Pushpin Label Position: | Location in Vietnam |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Mekong Delta |
| Subdivision Type2: | Province |
| Subdivision Name2: | Bến Tre |
| Subdivision Type3: | District |
| Subdivision Name3: | Mỏ Cày Bắc |
| Unit Pref: | Imperial |
| Area Total Km2: | 11.39 |
| Population As Of: | 1999 |
| Population Total: | 8887 |
| Population Density Km2: | 780 |
| Timezone: | Indochina Time |
| Utc Offset: | +07:00 |
| Coordinates: | 10.2369°N 106.2878°W |
| Postal Code Type: | Postal code |
| Postal Code: | 28909 |
Thạnh Ngãi is a rural commune of Mỏ Cày Bắc District, Bến Tre Province, Vietnam. The commune covers 11.39 km2. In 1999 it had a population of 8,887 and a population density of 780 inhabitants/km2.[1]