William "Bill" Hall (born December 28, 1979, in Nettleton, Mississippi) is a Major League Baseball third baseman and outfielder for the Seattle Mariners.

In the 2005 season, Hall helped the Brewers to their first .500 season since 1992. Splitting time among third base, shortstop, and second base, Hall had a batting average of .291 with 17 home runs and 62 RBIs.

The following season, Hall played behind newly acquired third baseman Corey Koskie, shortstop J. J. Hardy, and second baseman Rickie Weeks. On May 17, 2006, Hall became the Brewers' starting shortstop after Hardy injured his ankle.