| Tószeri | |
| Source1 Elevation: | 300m (1,000feet) |
| Mouth Coordinates: | 48.0037°N 19.9474°W |
| Subdivision Type1: | Country |
| Progression: | Iványi→ |
The Tószeri originates at Cserhát, east of Nádújfalu in Nógrád County, Hungary, at above sea level. It flows to the west and reaches the river Iványi at Mátraterenye.