| 3rd Royal Tank Regiment | |
|---|---|
 Cap badge of the Royal Tank Regiment | |
| Active | May 1916 – September 1992 |
| Country |  United Kingdom |
| Branch |  British Army |
| Type | Armoured |
| Role | Div Troops/Land Warfare training |
| Size | One regiment |
| Part of | Royal Armoured Corps |
| Nickname(s) | The Armoured Farmers |
| Motto(s) | Fear Naught |
| March | Quick: "On the Quarterdeck" (3RTR) and "My Boy Willie" (all RTR regiments) Slow: "The Royal Tank Regiment Slow March" |
| Battle honours | see Battle Honours |
| Commanders | |
| Colonel-in-Chief | HM The Queen |
| Insignia | |
| Tactical Recognition Flash | .PNG){kind=small} |
The 3rd Royal Tank Regiment (3 RTR) was an armoured regiment of the British Army in existence from 1917 until 1992. It was part of the Royal Tank Regiment, itself part of the Royal Armoured Corps. It originally saw action as C Battalion, Tank Corps in 1917.