John Campbell, 1st Earl of Breadalbane and Holland, known as Sir John Campbell, 5th Baronet from 1670 to 1681, was a member of Scottish nobility during the Glorious Revolution and Jacobite risings and also known as "Slippery John". An astutely political man, Campbell was one of the men implicated in the Massacre of Glencoe.

The Massacre of Glencoe took place in Glen Coe in the Highlands of Scotland on 13 February 1692. An estimated 30 members and associates of Clan MacDonald of Glencoe were killed by Scottish government forces, allegedly for failing to pledge allegiance to the new monarchs, William III and Mary II.