| Isesjøen | |
| Location: | Sarpsborg (Østfold) |
| Pushpin Map: | Norway Østfold |
| Basin Countries: | Norway |
| Area: | 6.2km2 |
| Shore: | 25.16km (15.63miles) |
| Elevation: | 38m (125feet) |
| Reference: | NVE |
Isesjøen is a lake in the municipality of Sarpsborg in Østfold county, Norway.[1]