General Sir Charles Menzies, KCB, KH (12 May 1783 – 22 August 1866) was a senior Royal Marines officer. Although he became a respected soldier, fighting with Horatio Nelson in the Napoleonic Wars and later rising to the rank of general before becoming aide de camp to Queen Victoria, Menzies is best remembered for the founding of Newcastle, New South Wales and the successful commencement of its settlement between the age of 21 and 22.