|All spellings of the name
come from the Gaelic MacDhiarmaid, 'son of Dermaid', who is one of St Columba's
attendants, son of a king of the Scots, and a Celtic hero. The MacDiarmids claimed to be
the oldest inhabitants of Glenlyon, and many of them enlisted in the company raised by the
Duke of Atholl in 1706. There is a strong representation in Argyll.