| Official Name: | Mravljača |
| Native Name: | Мрављача |
| Settlement Type: | Village |
| Pushpin Map: | Bosnia and Herzegovina |
| Pushpin Label Position: | left |
| Subdivision Type: | Country |
| Subdivision Name: | Bosnia and Herzegovina |
| Subdivision Type1: | Entity |
| Subdivision Name1: | Federation of Bosnia and Herzegovina |
| Subdivision Type2: | Canton |
| Subdivision Name2: | Bosnian-Podrinje Goražde |
| Subdivision Type3: | Municipality |
| Unit Pref: | Imperial |
| Area Total Km2: | 6.98 |
| Population As Of: | 2013 |
| Population Total: | 4 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 43.61°N 18.7553°W |
Mravljača (Serbian: Мрављача) is a village in the municipality of Foča-Ustikolina, Bosnia and Herzegovina.[1]
According to the 2013 census, its population was four, all Serbs.[2]