William Sean Bennett (born November 9, 1975) is a former professional American and Canadian football running back. He was drafted by the New York Giants of the National Football League (NFL) in the fourth round of the 1999 NFL Draft. He played college football for the Evansville Purple Aces, Illinois Fighting Illini and Northwestern Wildcats.
Bennett began his collegiate career as a baseball and football player at the University of Illinois, but transferred to the University of Evansville after one year. At Evansville he was an All-American two–times but had to transfer due to the school dropping football as a sport. Bennett then attended Northwestern University, where he was a fullback and was mainly a blocker but did get a few rushing attempts.
Since he was a senior after his single season at Northwestern, he elected to enter the 1999 NFL Draft and surprised many by being selected by the New York Giants in the fourth round. He played four seasons in New York but ended up injured each season and was released after 2002. He then joined the New York Jets but was released before the season began. After his failed stints in New York he played for the Canadian Football League's Ottawa Renegades and Toronto Argonauts; and the Evansville BlueCats of the Indoor Football League.