| Karosa B831 | |
| Manufacturer: | Karosa |
| Floortype: | High-floor |
| Doors: | 3, air-operated |
| Chassis: | semi-self-supporting with frame |
| Predecessor: | Karosa B 731 |
The Karosa B 831 was a bus produced by the Czech manufacturer Karosa between 1987 and 1989. It was intended as a successor to the Karosa B 731 and with trolleybus Škoda 17Tr had to be part of unified series of city vehicles. The last known B 831 can be found in the Technical Museum in Brno.[1]