|Distance:||3.3 miles (5.3 km)|
|Old route now:||B765|
|Route outline (key)|
The B806 is a short B-road in north Lanarkshire.
It starts at a mini-roundabout on the A752 in Gartcosh and heads west along Gartloch Road. The road's original route was slightly further north along what is now Old Gartloch Road. This crossed a now-removed bridge over the railway line and then headed through the houses along a line that can no longer be followed.
After old and new routes rejoin the B806 continues west across the fields. It soon reaches Gartloch, a former mental hospital whose grounds have now become a housing estate. The road continues west and eventually reaches Garthamlock, a modern estate, much of which has now been demolished. As the road nears its end it becomes more built-up and it soon ends at traffic lights on the B765 just north of M8 J11.