| Country: | DEU |
| Type: | A |
| Route: | 86 |
| Map: | Map D A86 in 1976 planning.svg |
| Established: | 1975 |
| Decommissioned: | 1980 |
| Terminus A: | Freiburg im Breisgau |
| Terminus B: | Langenau |
| States: | Baden-Württemberg |
was a planned autobahn in Germany. It was supposed to connect Breisach via Freiburg im Breisgau - Titisee - Donaueschingen - Tuttlingen - Riedlingen - Ulm to Langenau. Part of it has been built as the A 864.
The construction of the Autobahn stopped.