James Mackenzie, Lord Royston (1671–1744) was a Scottish judge and Senator of the College of Justice.
He was born in 1671 the son of George Mackenzie, 1st Earl of Cromartie by his first wife.
[1] In 1683 his father built "Royston House" a mansion north of Edinburgh.
[2] On 7 June 1710 he was created a Senator of the College of Justice taking the title Lord Royston, in place of his paternal uncle Roderick Mackenzie, Lord Prestonhall who resigned due to ill health.
[citation needed] He married a distant cousin, Elizabeth MacKenzie daughter of Sir George Mackenzie of Rosehaugh and widow of Sir Archibald Cockburn of Langton.