1958 Pittsburgh Pirates season

The 1958 Pittsburgh Pirates season was the 77th season of the Pittsburgh Pirates franchise; the 72nd in the National League. The Pirates finished second in the league standings with a record of 84–70, a 22-game improvement over. They ended the year in the first division for the first time since and recorded their highest league standing since the  edition also finished in second place. Manager Danny Murtaugh, in his first full season at the Pirates' helm, was voted Major League Manager of the Year by The Sporting News.

Offseason

 * December 2, 1957: Ellis Burton was drafted from the Pirates by the St. Louis Cardinals in the 1957 minor league draft.
 * December 28, 1957: Dee Fondy was traded by the Pirates to the Cincinnati Redlegs for Ted Kluszewski.

Game log

 * Legend:      = Win       = Loss Bold = Pirates team member
 * Legend:      = Win       = Loss Bold = Pirates team member

Notable transactions

 * June 15, 1958: Johnny O'Brien and Gene Freese were traded by the Pirates to the St. Louis Cardinals for Dick Schofield and cash.

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

Farm system
LEAGUE CHAMPIONS: Douglas San Jose franchised transferred to Las Vegas and renamed, May 26, 1958