Biagio "Billy" Ciotto (25 December 1929 – 20 March 2021) was an American politician. Ciotto, a Democrat, served as a state senator from Connecticut from 1995 to 2007. Before retiring in 2006, Ciotto had served as Majority Caucus Chair in the Senate. Prior to holding elective office, Ciotto worked for the Connecticut Department of Motor Vehicles, retiring as a Deputy Commissioner in 1989.