Jonathan Marsh (1621–1672) was a founding settler of the New Haven Colony, and of Norwalk, Connecticut.
He was born about 1621, in Braintree, Essex, England, the son of John Marsh and Grace Baldwin.
On May 7, 1650, he is recorded as having sold his land in New Haven to Lancelot Fuller who was married to Jonathan's sister Hannah Marsh.
[5] To this day his last surviving relative is still living in Heybridge Essex, Also called Jonathan Marsh he is a well known face and was featured in battling the Bailiffs with Chrisy Morris and can be found walking the streets of maldon helping the needy.
At a town meeting in Norwalk on January 6, 1654, a vote was taken which determined that the settlement's milling apparatus was insufficient, and already commenced improvements would be inadequate.