Keith McDonald (born February 8, 1973 in Yokosuka, Japan) is a Major League Baseball catcher and right-handed batter. He made his debut with the St. Louis Cardinals.
On July 4, 2000 McDonald becomes only the third player in St. Louis history to hit a home run in his first major league at-bat. On July 6, he homers in his second at-bat, becoming only the second player in MLB history to hit HRs in each of his first two big league at bats. Bob Nieman, in 1951, is the other.
In his first season McDonald batted .429 (3-7), with three homers, five RBI and three runs in six games. He returned the following season as a last month call-up, but went hitless in his only two at-bats. He is currently playing for the Nashville Sounds, an AAA affiliate team of the Pittsburgh Pirates.