- RAOC
- Rhine Army Remount Dept
- Rhodesia Regiment
- Rifle Brigade
- Royal Air Force
- Royal Army Medical Corps
- Royal Army Service Corps
- Royal Berkshire Regiment
- Royal Defence Corp
- Royal Dragoons
- Royal Dublin Fusiliers
- Royal Engineers
- Royal Engineers - Renfrew Fortress
- Royal Field Artillery
- Royal Flying Corps
- Royal Fusiliers
- Royal Garrison Artillery
- Royal Horse Artillery
- Royal Indian Marine
- Royal Inniskilling Fusiliers
- Royal Irish Fusiliers
- Royal Irish Regiment
- Royal Irish Rifles
- Royal Lancashire Regiment
- Royal Leinsters
- Royal Marine Artillery
- Royal Marine Engineers
- Royal Marine Labour Corps
- Royal Marine Light Infantry
- Royal Marines
- Royal Munster Fusiliers
- Royal Naval Air Service
- Royal Naval Canadian Volunteer Reserve
- Royal Naval Division
- Royal Naval Reserve
- Royal Naval Volunteer Reserve
- Royal Navy
- Royal Scots
- Royal Scots Fusiliers
- Royal Sussex Regiment
- Royal Warwickshire Regiment
- Royal Welch Fusiliers
- Royal West Kent Regiment