The B6122 is a short, remarkably rural B-road to the north of the Yorkshire town of Dewsbury.
The road starts at traffic lights on the B6123 on the eastern edge of Heckmondwike and heads north along White Lee Road. After passing fields on the right (although the left side remains residential) the road reaches White Lee itself and traffic lights on the A62.
Originally the B6122 ended here; however, the road was extended ahead in the 1960s. It climbs across the fields before reaching the edge of Gomersal, where the road bends to the right and ends at a T-junction on the A643.