Roderick Mackenzie, Lord Prestonhall (c.1635–1712) was a Scottish judge and Senator of the College of Justice.
He was the son of Sir John Mackenzie of Tarbat (1608-1654) and his wife Margaret Erskine.
His older brother was George Mackenzie, 1st Earl of Cromartie.
[2] On 12 January he was created a Senator of the College of Justice taking the title Lord Prestonhall, in place of the late James Scougal, Lord Whitehill.
Preston Hall was bought in 1738 by Henrietta widow of the Duke of Gordon who commissioned William Adam to remodel it, and it was again remodelled 1792-1800 when it was redesigned as a highly formal mansion with side wings, as it now exists.