John Coggeshall Sr. (2 December 1599 – 27 November 1647) was one of the founders of the Colony of Rhode Island and Providence Plantations and the first President of all four towns in the Colony. He was a successful silk merchant in Essex, England, but he emigrated to the Massachusetts Bay Colony in 1632 and quickly assumed a number of roles in the colonial government. In the mid-1630s, he became a supporter of dissident minister John Wheelwright and of Anne Hutchinson. Hutchinson was tried as a heretic in 1637, and Coggeshall was one of three deputies who voted for her acquittal. She was banished from the colony in 1638, and the three deputies who voted for her acquittal were also compelled to leave. Before leaving Boston, Coggeshall and many other Hutchinson supporters signed the Portsmouth Compact in March 1638 agreeing to form a government based on the individual consent of the inhabitants. They then established the settlement of Portsmouth on Aquidneck Island (called Rhode Island at the time), one of the four towns comprising the Colony of Rhode Island and Providence Plantations.