Wallace Darnell Johnson
- Bats Both, Throws Right
- Height 5' 11", Weight 185 lb.
- School Indiana State University
- High School Theodore Roosevelt High School (Gary)
- Debut September 8, 1981
- Final Game August 3, 1990
- Born December 25, 1956 in Gary, IN USA
After graduating from Indiana State University, Wallace was drafted by the Montreal Expos in the 6th round of the 1979 amateur draft. His skills in the major leagues were centered around pinch-hitting, although he was a complete player in the minors. He drove in the run that put the Expos in their first (and only) postseason in 1981, a pinch-hit triple against the New York Mets in the next-to-last game of the season. He was given the starting second baseman's job to begin the 1982 season, but lost it within a few weeks. He was briefly traded to the San Francisco Giants, playing there for a few games in 1983, then returned to the Expos organization. He returned to the big leagues in midseason in 1986 and became the Expos' top pinch-hitter, and one of the best in the big leagues, until he struggled in 1990 and was released in August. He hit .309 in 1988, and drove in 14 and 17 runs in 1987 and 1989 respectively.
Johnson was a coach for the Eugene Emeralds (1995), Macon Braves (1996), and Durham Bulls (1997). He spent five years as the third-base coach with the Chicago White Sox but was fired after the 2002 season.