The Staffordshire Yeomanry (Queen's Own Royal Regiment) was a mounted auxiliary unit of the British Army raised in 1794 to defend Great Britain from foreign invasion. It continued in service after the Napoleonic Wars, frequently being called out in support of the civil powers. It first sent units overseas at the time of the Second Boer War and saw distinguished service in Egypt and Palestine in World War I. During World War II it gave up its horses and became a tank regiment, serving in the Western Desert and landing in Normandy on D-Day. Postwar the Staffordshire Yeomanry became part of the Queen's Own Mercian Yeomanry with one of the squadrons being designated 'Staffordshire Yeomanry' until 2021.

Yeomanry is a designation used by a number of units and sub-units in the British Army Reserve which are descended from volunteer cavalry regiments that now serve in a variety of different roles.