Kenneth P. LaValle is a former American politician. He represented District 1 in the New York State Senate. The district comprises the five East End towns of Long Island, New York, as well as the central and eastern portions of the Town of Brookhaven, New York. A Republican, LaValle was first elected in 1976. Upon his retirement in 2020, he was the longest-serving member of the Senate and had served more terms in office than any other current state senator in the United States.