David John Sax (born September 22, 1958) is a former Major League Baseball player and the older brother of All-Star second baseman Steve Sax. He played as a catcher for the Los Angeles Dodgers (1982–83) and Boston Red Sox (1985–87) in his brief major league career. His lone major league home run came against Jimmy Key in an important AL East matchup on September 21, 1986. It helped the eventual American League east champion Red Sox defeat their rival 3-2 in a late season game. 
|Born: September 22, 1958|
|September 1, 1982, for the Los Angeles Dodgers|
|Last MLB appearance|
|April 26, 1987, for the Boston Red Sox|
|Runs batted in||8|
Sax also played winter ball with the Navegantes del Magallanes club of the Venezuelan League in the 1983–84 season. He later made a brief appearance for the Daytona Beach Explorers of the Senior Professional Baseball Association in 1991.