| Isa Aga | |
| Elevation M: | 2555 |
| Map: | Kosovo |
| Range: | Šar Mountains |
| Coordinates: | 42.0986°N 20.8433°W |
Isa Aga (also called Vrtop or Van Korff[1]) is a mountain peak in Kosovo and North Macedonia. It is part of the Šar Mountains and is found in the middle of the ridge. It is 25550NaN0 high.