| Royal Marines Division | |
|---|---|
 The Royal Marines Division's shoulder badge | |
| Active | 1940–1943 |
| Country | United Kingdom |
| Branch | Royal Marines |
| Role | Amphibious warfare |
| Engagements | Operation Menace |
| Commanders | |
| Notable commanders | Robert Sturges |
The Royal Marine Brigade and subsequent Royal Marine Division were amphibious warfare units formed by the British Royal Marines at the start of the Second World War.
The composition of both units was almost constantly in flux, with neither ever achieving their full establishment. Though neither unit saw action, they both played important roles in the development of amphibious warfare techniques and their constituent units went on to play important roles in the largest amphibious operation in history, Operation Neptune.