Carlo Leone is an American politician serving as the senior adviser to ConnDOT commissioner Joseph Giulietti. Leone formerly represented the 27th district of the Connecticut State Senate as a Democrat from 2011 until his resignation in 2021. While in the State Senate, he served as deputy president pro tempore and chair of the Transportation Committee. Leone also served in the Connecticut House of Representatives representing the 148th district from 2003 to 2011. As a Democrat, he served as the deputy majority whip in the House of Representatives.