John Christian Curwen (1756-1828) was a Manx-descended politician and agricultural reformer who represented Carlisle in Parliament for over thirty years. Born John Christian of Ewanrigg and Milntown, he took the name Curwen on inheriting Workington Hall. He was a member of the House of Keys and a vigorous opponent of the Duke of Atholl's claims, and his agricultural innovations benefited both Cumberland and the Isle of Man.