The Hutchinson letters affair was an incident that increased tensions between the colonists of the Province of Massachusetts Bay and the British government prior to the American Revolution.
In June 1773, letters written several years earlier by Thomas Hutchinson and Andrew Oliver, who were governor and lieutenant governor of the province at the time of their publication, were published in a Boston newspaper. The content of the letters was propagandistically claimed by Massachusetts radical politicians to call for the abridgement of colonial rights, and a duel was fought in England over the matter.
The affair served to inflame tensions in Massachusetts, where the implementation of the 1773 Tea Act was met with resistance that culminated in the Boston Tea Party in December 1773. The response of the British government to the publication of the letters served to turn Benjamin Franklin, one of the principal figures in the affair, into a committed Patriot.