42nd Royal Tank Regiment
| 42nd Royal Tank Regiment | |
|---|---|
| Cap badge of the Royal Tank Regiment | |
| Active | November 1938 – October 1956 | 
| Country | United Kingdom | 
| Branch | British Army | 
| Type | Armoured | 
| Size | One regiment | 
| Part of | Royal Armoured Corps | 
| Motto(s) | Fear Naught | 
| March | Quick: "My Boy Willie" (all RTR regiments) Slow: "The Royal Tank Regiment Slow March" | 
The 42nd Royal Tank Regiment (42 RTR) was an armoured regiment of the British Army from 1938 until 1956. It was part of the Royal Tank Regiment, itself part of the Royal Armoured Corps.