| Long Mỹ | |
| Settlement Type: | Commune and village |
| Pushpin Label Position: | top |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Vietnam |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Bà Rịa–Vũng Tàu |
| Subdivision Type2: | District |
| Subdivision Name2: | Đất Đỏ |
| Unit Pref: | Imperial |
| Area Total Km2: | 12,75 |
| Population As Of: | 2017 |
| Population Total: | 4.220 |
| Population Density Km2: | 331 |
| Population Blank1 Title: | Ethnicities |
| Timezone: | UTC+7 |
| Utc Offset: | +7 |
Long Mỹ is a commune (xã) and village in Đất Đỏ District, Bà Rịa–Vũng Tàu province, in Vietnam.