The Canadian Martyrs, also known as the North American Martyrs, were eight Jesuit missionaries from Sainte-Marie among the Hurons. They were ritually tortured and killed on various dates in the mid-17th century in Canada, in what is now southern Ontario, and in upstate New York, during the warfare between the Iroquioan tribes the Mohawk and the Huron. They have subsequently been canonized and venerated as martyrs by the Catholic Church.

Jesuit missions in North America were attempted in the late 16th century, established early in the 17th century, faltered at the beginning of the 18th, disappeared during the suppression of the Society of Jesus around 1763, and returned around 1830 after the restoration of the Society. The missions were established as part of the colonial drive of France and Spain during the period, the "saving of souls" being an accompaniment of the constitution of Nouvelle-France and early New Spain. The efforts of the Jesuits in North America were paralleled by their China missions on the other side of the world, and in South America. They left written documentation of their efforts, in the form of The Jesuit Relations.