William Scott Vare (December 24, 1867 – August 7, 1934) was an American construction contractor and Republican Party politician from Philadelphia, Pennsylvania. He represented Pennsylvania in the U.S House and won a contested election to the United States Senate.
Bill Vare was the youngest of three Vare brothers who were all contractors and politicians. George (1859–1908), Ed (1862–1922) and William were all born in the area of South Philadelphia known in local slang as "The Neck", or the area of South Philadelphia that calls the Wachovia Center, Lincoln Financial Field and Citizens Bank Park home.
Bill, although not the product of a dysfunctional family, nevertheless had a rough childhood. At age six, he witnessed the death of his father, his mother died while in labor and with the exceptions of his two older brothers mentioned above he witnessed the deaths of all his brothers and sisters. This seems to have instilled in him a dark side, a bright side and a real drive to succeed. The renowned merchant of Philadelphia, John Wanamaker, took young Bill under his wing, by paying for his tuition at Philadelphia's famous Central Highschool, and a little later he worked at Wanamaker's.