| Coordinates: | 50.7236°N 7.5878°W |
| Image Plan: | Oberirsen in AK.svg |
| State: | Rheinland-Pfalz |
| District: | Altenkirchen |
| Verbandsgemeinde: | Altenkirchen-Flammersfeld |
| Elevation: | 235 |
| Area: | 9.45 |
| Postal Code: | 57635 |
| Area Code: | 02686 |
| Licence: | AK |
| Gemeindeschlüssel: | 07 1 32 082 |
| Mayor: | Wilfried Stahl[1] |
| Leader Term: | 2019 - 24 |
Oberirsen is a municipality in the district of Altenkirchen, in Rhineland-Palatinate, in western Germany.