This is a list of bus routes that operate in Gloucestershire, United Kingdom. The major operators in the Gloucestershire area are Cotswold Green and Stagecoach West. Other operators in Gloucestershire are Swanbrook, Mikes Travel, Jackies Coaches, and Wessex Bus. There are also several operators based outside of Gloucestershire who either run services wholly within the area or services which start outside the area. This includes parts of Bristol, Monmouthshire, Oxfordshire, Worcestershire, Warwickshire, and Wiltshire.