| Arboga River | |
| Map: | LA2-Bergslagen-vatten.png |
| Subdivision Type1: | Country |
| Subdivision Name1: | Sweden |
| Subdivision Type3: | County |
| Subdivision Name3: | Örebro, Västmanland |
| Length: | 145km (90miles) |
| Discharge1 Avg: | 38m3/s |
| Source1: | Väringen |
| Source1 Coordinates: | 59.425°N 15.4347°W |
| Source1 Elevation: | 32m (105feet) |
| Mouth: | Mälaren |
| Mouth Location: | Kungsör |
| Mouth Coordinates: | 59.4306°N 16.1042°W |
| Mouth Elevation: | 0.7m (02.3feet) |
| Basin Size: | 3808km2 |
Arboga River (Swedish: Arbogaån) is a river in Sweden. It flows from the lake Väringen, through Arboga and eventually into the lake Mälaren at Kungsör.