Thomas Haynes Upton OBE (2 June 1889 – 25 October 1956) was an Australian civil engineer. Hailing from Melbourne, Upton learned his trade in England as a consulting engineer designing bridges and buildings before returning to Australia to work for the Country Roads Board. He served as a sapper for the Royal Navy during World War I and was then commissioned as lieutenant in the Royal Engineers until being wounded and evacuated in February 1916. He returned to the front a year later before being wounded a second time and sent to the rear lines as a staff officer and acting captain. Three times mentioned in dispatches, he was discharged in 1919 and awarded the Order of the British Empire.