HMS Crested Eagle was a paddle steamer sunk in the Dunkirk evacuation. J. Samuel White built her in 1925 for the General Steam Navigation Company, and was requisitioned by the Admiralty during the World War II for anti-aircraft duties as part of the Thames Special Service Flotilla.

The Dunkirk evacuation, codenamed Operation Dynamo and also known as the Miracle of Dunkirk, or just Dunkirk, was the evacuation of more than 338,000 Allied soldiers during the Second World War from the beaches and harbour of Dunkirk, in the north of France, between 26 May and 4 June 1940. The operation commenced after large numbers of Belgian, British, and French troops were cut off and surrounded by German troops during the six-week Battle of France.