The Bishop, formal designation Ordnance QF 25-pdr on Carrier Valentine 25-pdr Mk 1, was a British self-propelled gun vehicle based on the Valentine tank and armed with the QF 25-pounder gun-howitzer, which could fire an 87.6 mm (3.45 in) 11.5 kg (25 lb) HE shell or an armour-piercing shell.

A result of a rushed attempt to create a self-propelled gun, the vehicle had numerous problems, was produced in limited numbers and was soon replaced by better designs.

The rapid manoeuvre warfare practiced in the North African Campaign led to a requirement for a self-propelled artillery vehicle armed with the 25-pounder gun-howitzer.

[1] The vehicle was based on the Valentine II hull, with the turret replaced by a fixed boxy superstructure with large rear doors.

[3] The Bishop first saw action during the Second Battle of El Alamein in North Africa and remained in service during the early part of the Italian Campaign.