Gerlach II of Isenburg-Arnfels was the Count of Isenburg-Arnfels from 1333 until 1379. After his death, the line of counts of Arnfels was extinct, so the lands were inherited by Isenburg-Wied.
| width=150px | Preceded by: | width=200px | Gerlach II | width=150px | Succeeded by: |
|---|---|---|---|---|---|
| Theodoric | Count of Isenburg-Arnfels 1333–1379 | extinct to Isenburg-Wied |