Mungo Graham or Graeme (1670–1754), of Gorthy, Perthshire, was a Scottish politician who sat in the Parliament of Scotland from 1702 to 1707 and in the British House of Commons between 1707 and 1711.
In 1704, when Montrose's political friends took over responsibility for court management in the ‘New Party’ experiment, the Grahams remained in opposition.
At the 1708 British general election Graham could not find a safe seat for himself and stood unsuccessfully for Perth Burghs.
Graham's political position was unclear and the only vote he recorded was on 27 January 1711 when with other Scottish members, he opposed an extension of the coal duty.
Graham was appointed receiver-general and cashier of customs and salt duties for Scotland in January 1715 and he retained the post until 1733 when Montrose was dismissed from office.