Godfrey James Macdonald, 8th Baron Macdonald of Slate (born 28 November 1947), is a Scottish nobleman, landowner and head of Clan Donald.
He is the second child and oldest son of Alexander Godfrey Macdonald, 7th Baron Macdonald of Slate, and his wife Anne Whitaker. He was educated at Eton College.
He married Claire Catlow OBE on 14 June 1969. The couple has three daughters and a son:
Lord and Lady Macdonald live at the family seat Armadale Castle on Skye, where they run the Clan Donald museum, the Museum of the Isles, and the Kinloch Lodge restaurant. Lady Macdonald is a noted cook and food writer.
Lord Macdonald succeeded to the title Baron Macdonald in 1970 on the death of his father.
He was an elected member of Invernessshire County Council 1970-1975 and of Skye and Lochalsh District Council 1975-1983.