HNLMS De Ruyter (Dutch: Hr.Ms. De Ruyter) was a light cruiser of the Royal Netherlands Navy. She was originally designed as a 5,000 long tons (5,100 t) ship with a lighter armament due to financial problems and the pacifist movement. Later in the design stage, an extra gun turret was added and the armor was improved. She was the seventh ship of the Dutch Navy to be named after Admiral Michiel Adriaenszoon de Ruyter.