Ralph Milbanke may refer to:

Sir Ralph Milbanke, 4th Baronet (died 1748), of the Milbanke baronets Sir Ralph Milbanke, 5th Baronet (1725–1798) Ralph Noel (born Ralph Milbanke, died 1825), MP for County Durham Sir Ralph Mark Milbanke, 12th Baronet (1907–1949), of the Milbanke baronets