| Official Name: | Aldina Reka |
| Settlement Type: | Village |
| Pushpin Map: | Serbia |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: |  Serbia |
| Subdivision Type1: | District |
| Subdivision Name1: | Zaječar District |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Knjaževac |
| Unit Pref: | Imperial |
| Population As Of: | 2011 |
| Population Total: | 1 |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 43.4519°N 22.5169°W |
Aldina Reka is a village in the municipality of Knjaževac, Serbia. According to the 2011 census, a lone person populates the village. 2002 there were still 12 inhabitants.[1] Its population peaked in the 1960s, with 396 living in the village according to the 1961 census.