Edward Sabine Renwick (1823–1912) was an American mechanical engineer, inventor and patent expert.
One brother, James Renwick Jr., was a leading US architect, designer of St. Patrick's Cathedral, Grace Church, Vassar College, the Smithsonian Institution and the Croton Aqueduct.
His grandmother Jean Jeffrey/Jeannie Jaffray of Lochmaben was the Blue-Eyed Lassie mentioned in Robert Burns' poem I gaed a waefu' gate yestreen.
Renwick formulated at least 25 inventions over his lifetime, including a combination chicken brooder and incubator, and a self-binding reaping machine.
One of his greatest achievements was the designing and supervising, with his brother Henry, of a repairing of a break in the bilge of the Great Eastern steamship with a floating caisson, clamped to the hull.