Sir Robert Geffrye (also spelled Geffrey) (1613–1703) was an English merchant, and Lord Mayor of London in 1685. Geffrye was born to poor parents at Landrake, near Saltash, Cornwall and moved to London, where he became an eminent East India merchant, with his house on Lime Street. He was Master of the Worshipful Company of Ironmongers, knighted in 1673, appointed a Sheriff of London in 1674 and elected Lord Mayor of London in 1685. He married Priscilla, daughter of Luke Cropley, a London merchant, but had no children.