The Princess of Wales's Royal Regiment (Queen's and Royal Hampshires) (PWRR, known as 'The Tigers') is the senior English line infantry regiment of the British Army, part of the Queen's Division. It was formed in 1992 by the amalgamation of The Queen's Regiment and The Royal Hampshire Regiment and holds the earliest battle honour in the British Army (Tangier, 1662) which was not awarded until 1784. Through its ancestry via the Queen's Regiment to the Queen's Royal Regiment (West Surrey), the PWRR is the most senior English line infantry regiment. The current regiment was named in honour of Diana, Princess of Wales.

Upon its creation, HRH The Princess of Wales and HM The Queen of Denmark were Allied Colonels-in-Chief of the PWRR. When the Princess divorced HRH The Prince of Wales, she resigned as Colonel-in-chief and the Queen of Denmark has remained its Colonel-in-Chief since.

The regimental headquarters (RHQ) is in Canterbury, whilst the regiment itself comprises three battalions:

·         1st Battalion — Armoured Infantry (20th Armoured Brigade)

·         2nd Battalion — Light Role (London District)

·         3rd Battalion — Territorial Army Infantry (2 (South East) Brigade)

There is also a single Territorial Army company, B (Queen's) Company of the London Regiment.