Thomas William Smith (27 March 1927 – 3 October 2012) was a British aerospace engineer, and the team leader of the proposed BAC MUSTARD (Multi-Unit Space Transport And Recovery Device) reusable spacecraft design.
He studied Aeronautical Engineering at Queen Mary College in east London.
Later he was one of the leaders of the team that developed the BAC TSR-2, which was cancelled in April 1965.
He became Chief of the Aerospace Department at BAC (Preston Division) at Warton.
After MUSTARD he worked on the SEPECAT Jaguar and Panavia Tornado, both largely BAC designs.