|[[File:|240x240px|frameless}}|Capbadge of The Princess of Wales's Royal Regiment|alt=]]|
|Part of||7th Infantry Brigade and Headquarters East|
The 4th Battalion, The Princess of Wales's Royal Regiment or (4 PWRR) is an reserve battalion of the British Army. The battalion was formed as part of the Army 2020 refines along with another reserve battalion attached to The Rifles.
Under the Army 2020 refines the battalion was to be formed and attached to the 7th Infantry Brigade and Headquarters East with their headquarters at Crawley. The battalion was designated as a "reserve light infantry battalion". The battalion was later paired with the 1st Battalion The Princess of Wales' Royal Regiment.
- Battalion Headquarters and Headquarters Company at Crawley and Redhill
- A Company at Army Reserve Centre, Farnham
- B (Queen's) Company at Army Reserve Centre, Edgware
- C (Cosham) Company at Tudor Crescent, Portsmouth
- D Company at Crawley, West Sussex