John Hoar (1622 – April 2, 1704) was a militia leader & Indian liaison in colonial Massachusetts during King Philip's War. He is best known for securing the release of Mary Rowlandson from Nipmuc captivity at Redemption Rock. The event was depicted in the best-selling book The Sovereignty and Goodness of God: Being a Narrative of the Captivity and Restoration of Mrs. Mary Rowlandson.