Lieutenant-Colonel Charles William Campbell, 9th Earl of Breadalbane and Holland MC DL JP (11 June 1889 – 5 May 1959), known as Charles Campbell until 1923, was a Scottish peer and soldier. Campbell was the son of Major-General Charles William Campbell by Gwynedd, daughter of William Edward Brinckman and granddaughter of Sir Theodore Brinckman, 1st Baronet. He was a Major in the Royal Horse Artillery and Royal Field Artillery and a Lieutenant-Colonel in the Argyll and Sutherland Highlanders, and fought in the First World War, where he was awarded the Military Cross.