Frederic Thomas Nicholls (November 22, 1856 – October 25, 1921) was a Canadian businessman, electrical engineer and politician. He was a Conservative senator representing the senatorial division of Toronto, Ontario from 1917 to 1921. In 1900 Nicholls became second vice-president as well as manager of Canadian General Electric. He was president of the National Electric Light Association of the United States in 1896-97 and brought its annual convention to Niagara Falls, Ontario, in 1897.