The 1934 Pittsburgh Pirates season was the 53rd season of the Pittsburgh Pirates franchise; the 48th in the National League. The Pirates finished fifth in the league standings with a record of 74–76.

Regular season

The roster featured seven future Hall of Famers: player-manager Pie Traynor, pitcher Waite Hoyt, pitcher Burleigh Grimes, shortstop Arky Vaughan, outfielder Freddie Lindstrom, center fielder Lloyd Waner, and right fielder Paul Waner.

Season standings

Record vs. opponents

Game log

Opening Day lineup

Roster

Player stats

Batting

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''

Pitching

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