1991 San Francisco Giants season

The 1991 San Francisco Giants season was the Giants' 109th season in Major League Baseball, their 34th season in San Francisco since their move from New York following the 1957 season, and their 32nd at Candlestick Park. The team finished in fourth place in the National League West with a 75–87 record, 19 games behind the Atlanta Braves.

Offseason

 * November 9, 1990: Bud Black signed as a free agent with the San Francisco Giants.
 * December 4, 1990: Dave Righetti signed as a free agent with the San Francisco Giants.
 * December 4, 1990: Darren Lewis was traded by the Oakland Athletics with a player to be named later to the San Francisco Giants for Ernest Riles. The Oakland Athletics sent Pedro Pena (minors) (December 17, 1990) to the San Francisco Giants to complete the trade.
 * March 30, 1991: Darnell Coles was signed as a free agent with the San Francisco Giants.

Opening Day starters

 * Kevin Bass
 * Mike Benjamin
 * John Burkett
 * Will Clark
 * Steve Decker
 * Willie McGee
 * Kevin Mitchell
 * Robby Thompson
 * Matt Williams

Notable transactions

 * June 3, 1991: William Van Landingham was drafted by the San Francisco Giants in the 5th round of the 1991 amateur draft. Player signed June 6, 1991.
 * June 19, 1991: Rick Reuschel was released by the San Francisco Giants.

Starters by position
''Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in''

Other batters
''Note: G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in''

Starting pitchers
Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Other pitchers
Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Relief pitchers
Note: G = Games pitched; W = Wins; L = Losses; SV = Saves; ERA = Earned run average; SO = Strikeouts

Award winners
All-Star Game
 * Will Clark, National League Leader, Slugging (.536)
 * Robby Thompson 2B, Willie Mac Award

Farm system
LEAGUE CHAMPIONS: Shreveport, Clinton