Robert Keith Johns
- Bats Right, Throws Right
- Height 6' 1", Weight 175 lb.
- School University of Mississippi
- High School Sandalwood High School
- Debut May 23, 1998
- Final Game May 26, 1998
- Born July 19, 1971 in Jacksonville, FL USA
Keith Johns made his only major league plate appearance on May 23, 1998 as a member of the Boston Red Sox, pinch-hitting for Jim Leyritz in a game versus the New York Yankees. He was walked by reliever Jeff Nelson in the 9th inning but did not score. He was a late-game defensive replacement at second base three days later in his second and final major league game.