David Alexander Gray (January 7, 1943 – July 29, 2020) was an American pitcher in Major League Baseball who played briefly for the Boston Red Sox during the 1964 season.

After spending his first year in professional baseball, 1963, at the minor league level, Gray was kept on Boston's Major League roster for the entire 1964 campaign to keep him from being drafted by other MLB teams under the terms of the Bonus Rule then in force.

In nine Major League appearances, Gray posted a 9.00 ERA with 17 strikeouts and 20 bases on balls in 13 innings of work, allowing 18 hits.

On June 20, 1964, he singled off Milt Pappas of the Baltimore Orioles in the seventh inning of the game at Memorial Stadium.

According Gray, Orioles catcher Andy Etchebarren told him before the pitch that Pappas would be throwing a fastball.