Thomas Hall (April 20, 1826 – June 11, 1919) was an American mechanic, physicist, inventor and manufacturer. He worked with the inventor Daniel Davis for many years co-inventing electric and telegraph equipment. He later ran his own business, manufacturing and selling electric components, electromagnetic devices and telegraph apparatus. He received many gold and silver medals for his innovations. One of his electricity experiments was a toy model-size electric locomotive that got its power directly off the tracks it was running on, which was a new concept and technology at the time. He was mostly associated with Boston and the area.