Prince of Wales's Own Civil Service Rifles

Prince of Wales' Own Civil Service Rifles
Cap badge of the Prince of Wales' Own Civil Service Rifles
Active	1798&nbash;1921
Country	United Kingdom
Branch	British Army
Type	Rifle regiment
Part of	London Regiment
Garrison/HQ	Somerset House
Motto(s)	Ich Dien (I Serve)
Engagements	Boer War World War I

The Prince of Wales' Own Civil Service Rifles was an infantry regiment of the Volunteer Force and Territorial Force of the British Army from 1798 to 1921; it saw active service in the Boer War and World War I as part of the London Regiment.

The regiment was originally formed as the Bank of England Volunteers in 1798 but was disbanded in 1814 at the end of the Napoleonic Wars. The regiment was re-raised by Viscount Bury on the formation of the Volunteer Force as the 21st Middlesex Middlesex Rifle Volunteers (Civil Service Rifles) in 1860. On formation of the Territorial Force in 1908 the Civil Service Rifles became part of the newly formed London Regiment and was titled 15th Battalion London Regiment (Civil Service Rifles).

During the First World War the regiment expanded to two battalions, with the 1st Battalion arriving in France in March 1915 forming part of the 4th London Brigade, part of the 2nd London Division.

Following the war the Civil Service Rifles were amalgamated with the 16th (County of London) Battalion, London Regiment in 1921.

The regiment's battle honours were as follows:

Ich Dien – (German for "I serve", a contraction of ich diene), the motto of the Prince of Wales.