Sir Terry Farrell, CBE, RIBA, FRSA, FCSD, MRTPI (born 12 May 1938) is a British architect and urban designer. In 1980, after working 15 years in partnership with Sir Nicholas Grimshaw, Farrell founded his own firm, Farrells. He garnered a strong reputation for contextual urban design schemes, as well as exuberant works of postmodernism such as the MI6 building. In 1991 his practice expanded internationally, opening an office in Hong Kong.