Captain George Louis Victor Henry Serge Mountbatten, 2nd Marquess of Milford Haven, born Prince George of Battenberg, styled Earl of Medina between 1917 and 1921, was a Royal Navy officer and the elder son of Louis Mountbatten, 1st Marquess of Milford Haven, and Princess Victoria of Hesse and by Rhine.

Marquess of Milford Haven is a title in the Peerage of the United Kingdom.