The Hon David Robertson Williamson, Lord Balgray (1761[1] - 1837) was an 18th-century Scottish lawyer who rose to be a Senator of the College of Justice.
He was born David Williamson in 1761, the son of Alexander Williamson of Balgray (1722-1804) and his wife Christian Robertson.
He owned the estate of Balgray, just north of Lockerbie in south-west Scotland.
In 1811 he replaced Alexander Fraser Tytler, Lord Woodhouselee as a Senator of the College of Justice.[2]
On his death in 1837 he was replaced by John Cunninghame, Lord Cunninghame.[3]
He married a cousin, Miss Robertson of Lawers. He afterwards styled himself David Robertson Williamson.
His nephew was also called David Robertson Williamson (1830-1919).