David Wilson Boswell (January 20, 1945 – June 11, 2012) was an American right-handed pitcher who spent eight seasons in Major League Baseball (MLB), all in the American League (AL), with the Minnesota Twins (1964–1970), Detroit Tigers, and Baltimore Orioles (both in 1971).

He won twenty games as a starting pitcher during the 1969 season, the only time he achieved the feat during his major league career.

[1] Even though the New York Yankees had offered the same amount of money, he decided that his chances to make the majors were better with Minnesota.

During the American League Championship Series, Boswell lost 1–0 in 11 innings to Baltimore Orioles pitcher Dave McNally.

He later revealed that he had suffered a career-ending arm injury during the game on a slider thrown to strike out slugger Frank Robinson in the bottom of the 10th.